J. Lo steals the night at 'Fashion Rocks' -- or one of her most famous assets did

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J. Lo steals the night at 'Fashion Rocks' -- or one of her most famous assets did
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Larry Busacca/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 at the Barclays center on September 9, 2014 in New York, United States. (Photo by Jeff Kravitz/FilmMagic)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 at the Barclays center on September 9, 2014 in New York, United States. (Photo by Jeff Kravitz/FilmMagic)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 at the Barclays center on September 9, 2014 in New York, United States. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs at Fashion Rocks 2014 at the Barclays center on September 9, 2014 in New York, United States. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs at Fashion Rocks 2014 at the Barclays center on September 9, 2014 in New York, United States. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez performs onstage at Fashion Rocks 2014 at the Barclays center on September 9, 2014 in New York, United States. (Photo by Jeff Kravitz/FilmMagic)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez attends Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Jeff Kravitz/FilmMagic)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez attends Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez attends Fashion Rocks 2014 at the Barclays Center on September 9, 2014 in New York City. (Photo by Jeff Kravitz/FilmMagic)
NEW YORK, NY - SEPTEMBER 09: Jennifer Lopez attends Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Fashion Rocks)
NEW YORK, NY - SEPTEMBER 08: Jennifer Lopez is seen on September 8, 2014 in New York City. (Photo by NCP/Star Max/GC Images)
NEW YORK, NY - SEPTEMBER 08: Jennifer Lopez is seen on September 8, 2014 in New York City. (Photo by NCP/Star Max/GC Images)
NEW YORK, NY - SEPTEMBER 08: Singer Jennifer Lopez is seen in the Meat Packing Distric on September 8, 2014 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - SEPTEMBER 05: Jennifer Lopez is seen in the Meat Packing District on September 5, 2014 in New York City. (Photo by Alo Ceballos/GC Images)
TODAY -- Pictured: Jennifer Lopez appears on NBC News' 'Today' show -- (Photo by: Peter Kramer/NBC/NBC NewsWire via Getty Images)
TODAY -- Pictured: Jennifer Lopez appears on NBC News' 'Today' show -- (Photo by: Peter Kramer/NBC/NBC NewsWire via Getty Images)
TODAY -- Pictured: (l-r) Hoda Kotb, Jennifer Lopez and Kathie Lee Gifford appear on NBC News' 'Today' show -- (Photo by: Peter Kramer/NBC/NBC NewsWire via Getty Images)
NEW ORLEANS, LA - AUGUST 27: Jennifer Lopez is interviewed by press as she arrives at the Ernest N. Morial Convention Center on August 27, 2014 in New Orleans, Louisiana. (Photo by Erika Goldring/Getty Images)
INGLEWOOD, CA - AUGUST 24: Recording artist Jennifer Lopez attends the 2014 MTV Video Music Awards held at The Forum on August 24, 2014 in Inglewood, California. (Photo by Tommaso Boddi/WireImage)
Jennifer Lopez, left, and Yandel, of musical group Wisin Y Yandel, perform onstage at the American Idol Finale on Wednesday, May 23, 2012 in Los Angeles. (Photo by John Shearer/Invision/AP)
Jennifer Lopez performs at the "American Idol" finale at the Nokia Theatre at L.A. Live on Thursday, May 16, 2013, in Los Angeles. (Photo by Matt Sayles/Invision/AP)
Jennifer Lopez, center, performs at the "American Idol" finale at the Nokia Theatre at L.A. Live on Thursday, May 16, 2013, in Los Angeles. (Photo by Matt Sayles/Invision/AP)
Jennifer Lopez performs at the "American Idol" finale at the Nokia Theatre at L.A. Live on Thursday, May 16, 2013, in Los Angeles. (Photo by Matt Sayles/Invision/AP)
Jennifer Lopez, center, performs at the "American Idol" finale at the Nokia Theatre at L.A. Live on Thursday, May 16, 2013, in Los Angeles. (Photo by Matt Sayles/Invision/AP)
Jennifer Lopez, center, performs at the "American Idol" finale at the Nokia Theatre at L.A. Live on Thursday, May 16, 2013, in Los Angeles. (Photo by Matt Sayles/Invision/AP)
Jennifer Lopez performs at the "American Idol" finale at the Nokia Theatre at L.A. Live on Thursday, May 16, 2013, in Los Angeles. (Photo by Matt Sayles/Invision/AP)
Jennifer Lopez, center, performs at the "American Idol" finale at the Nokia Theatre at L.A. Live on Thursday, May 16, 2013, in Los Angeles. (Photo by Matt Sayles/Invision/AP)
Jennifer Lopez, center, performs at the "American Idol" finale at the Nokia Theatre at L.A. Live on Thursday, May 16, 2013, in Los Angeles. (Photo by Matt Sayles/Invision/AP)
Jennifer Lopez, center, and from left, musical group Wisin Y Yandel perform onstage at the American Idol Finale on Wednesday, May 23, 2012 in Los Angeles. (Photo by John Shearer/Invision/AP)
Jennifer Lopez, center, performs onstage at the American Idol Finale on Wednesday, May 23, 2012 in Los Angeles. (Photo by John Shearer/Invision/AP)
Jennifer Lopez, center, performs onstage at the American Idol Finale on Wednesday, May 23, 2012 in Los Angeles. (Photo by John Shearer/Invision/AP)
Jennifer Lopez, center, performs onstage at the American Idol Finale on Wednesday, May 23, 2012 in Los Angeles. (Photo by John Shearer/Invision/AP)
Jennifer Lopez, center, performs onstage at the American Idol Finale on Wednesday, May 23, 2012 in Los Angeles. (Photo by John Shearer/Invision/AP)
Jennifer Lopez, center, performs onstage at the American Idol Finale on Wednesday, May 23, 2012 in Los Angeles. (Photo by John Shearer/Invision/AP)
Jennifer Lopez performs onstage at the American Idol Finale on Wednesday, May 23, 2012 in Los Angeles. (Photo by John Shearer/Invision/AP)
Jennifer Lopez, center, performs onstage at the American Idol Finale on Wednesday, May 23, 2012 in Los Angeles. (Photo by John Shearer/Invision/AP)
Jennifer Lopez, center, performs onstage at the American Idol Finale on Wednesday, May 23, 2012 in Los Angeles. (Photo by John Shearer/Invision/AP)
Jennifer Lopez performs onstage at the "American Idol" finale on Wednesday, May 23, 2012 in Los Angeles. (Photo by John Shearer/Invision/AP)
Jennifer Lopez performs onstage at the American Idol Finale on Wednesday, May 23, 2012 in Los Angeles. (Photo by John Shearer/Invision/AP)
Jennifer Lopez, center, performs onstage at the American Idol Finale on Wednesday, May 23, 2012 in Los Angeles. (Photo by John Shearer/Invision/AP)
Jennifer Lopez, center, performs at the "American Idol" finale on Wednesday, May 25, 2011, in Los Angeles. (AP Photo/Chris Pizzello)
Jennifer Lopez, right, dances as Marc Anthony performs at the "American Idol" finale on Wednesday, May 25, 2011, in Los Angeles. (AP Photo/Chris Pizzello)
FILE - In this Feb. 26, 2012 file photo, actress and singer Jennifer Lopez arrives at the Vanity Fair Oscar party in West Hollywood, Calif. Lopez was part of the all-star cast that helped lead “Ice Age: Continental Drift” to the top of the box office over the weekend, and the entertainer is eager to focus even more attention on her once white-hot movie career. She'll certainly have more time now that she's not going to be a judge on “American Idol.” She announced last Friday that she will not be coming back to the Fox talent competition, following in the footsteps of fellow judge Steven Tyler, who announced a day earlier that he would leave the show to devote more time to his band, Aerosmith. (AP Photo/Evan Agostini, file)
American Idol judges, from left to right, Steven Tyler, Jennifer Lopez, and Randy Jackson, look towards a person asking a question during the American Idol panel at the Fox Broadcasting Company Television Critics Association Winter Press Tour in Pasadena , Calif. on Sunday, Jan. 8, 2012. (AP Photo/Danny Moloshok)
From left, judges Keith Urban and Jennifer Lopez participate in FOX's "American Idol XIII" panel at the FOX Winter TCA Press Tour, on Monday, January 13, 2014 at the Langham Huntington, in Pasadena, Calif. (Photo by Frank Micelotta/Invision for FOX/AP Images)
American Idol judges Keith Urban, Jennifer Lopez and Harry Connick Jr., along with host Ryan Seacrest, arrived for the last day of auditions at the W Hotel on October 30, 2013 in Atlanta.
American Idol judges Keith Urban, Jennifer Lopez and Harry Connick Jr., along with host Ryan Seacrest, arrived for the last day of auditions at the W Hotel on October 30, 2013 in Atlanta.
From left, Keith Urban, Jennifer Lopez, Ryan Seacrest and Harry Connick Jr. arrive at the American Idol XIII premiere event, at UCLA, Royce Hall on Tuesday, Jan. 14, 2014 in Los Angeles. (Photo by Frank Micelotta/Invision for Fox/AP Images)
From left, Jennifer Lopez, Keith Urban and Harry Connick Jr. attend the American Idol XIII premiere event, at UCLA, Royce Hall on Tuesday, Jan. 14, 2014 in Los Angeles. (Photo by Jordan Strauss/Invision/AP)
Jennifer Lopez, left, and Keith Urban attend the American Idol XIII premiere event, at UCLA, Royce Hall on Tuesday, Jan. 14, 2014 in Los Angeles. (Photo by Jordan Strauss/Invision/AP)
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BY ELIZABETH WAGMEISTER, HOLLYWOODLIFE.COM
EDITED BY AOL

Dang, J. Lo!

During a performance of her song 'Booty,' Jennifer -- or should we say her most famous asset! -- stole the night at 'Fashion Rocks,' an annual international charity fundraiser, this year held at the Barclays Center in Brooklyn, New York.

The 45-year-old triple-threat sizzled as she unashamedly bared her back side as she stormed the stage.

Clad in a sequined minidress, Jenny From the Block's appearance had many a fan wondering if she is in fact aging backwards.

The 'Booty' singer was in great company, performing among Luke Bryan, The Band Perry, Nicki Minaj, Rita Ora, Pitbull, Usher, KISS and Afrojack at the Fashion Week fest, which was hosted by Ryan Seacrest.

The concert (televised on CBS, 9/8c) celebrates the relationship between music and fashion.

Watch the full performance below:

Jennifer Lopez's Performance at Fashion Rocks


In case you missed it, Justin Bieber had his own 'Fashion Rocks' moment. While on stage with model Lara Stone introducing Rita Ora, he responded to booing -- a spectacle seemingly staged -- by stripping down to his 'Calvins' while all his Beliebers at home stared at their TVs in disbelief. Click through to see him in action.

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J. Lo steals the night at 'Fashion Rocks' -- or one of her most famous assets did
NEW YORK, NY - SEPTEMBER 09: (L-R) Singer-songwriter Justin Bieber and model Laura Stone present onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: (L-R) Singer-songwriter Justin Bieber and model Laura Stone present onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Justin Bieber speaks onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: (L-R) Singer-songwriter Justin Bieber and model Laura Stone present onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Presenters Justin Bieber and Lara Stone speak at Fashion Rocks 2014 at the Barclays center on September 9, 2014 in New York, United States. (Photo by Jeff Kravitz/FilmMagic)
NEW YORK, NY - SEPTEMBER 09: (L-R) Singer-songwriter Justin Bieber and model Laura Stone present onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: (L-R) Singer-songwriter Justin Bieber and model Laura Stone present onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: (L-R) Singer-songwriter Justin Bieber and model Laura Stone present onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Singer-songwriter Justin Bieber presents onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: (L-R) Singer-songwriter Justin Bieber and model Laura Stone present onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Justin Bieber speaks onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: Justin Bieber speaks onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for Three Lions Entertainment)
NEW YORK, NY - SEPTEMBER 09: (L-R) Singer-songwriter Justin Bieber and model Laura Stone present onstage at Fashion Rocks 2014 presented by Three Lions Entertainment at the Barclays Center of Brooklyn on September 9, 2014 in New York City. (Photo by Theo Wargo/Getty Images for Three Lions Entertainment)
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More Jennifer Lopez News:
Jennifer Lopez & Iggy Azalea Release Sexy 'Booty' Remix - Listen
Jennifer Lopez Steals Ariana Grande's Signature Ponytail - Beauty Battle
Jennifer Lopez Strips Down & Hooks Up With Younger 'Boy Next Door' - Watch Trailer

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