Jennifer Lopez shows off her curves in throwback workout pic with Dwayne Johnson


Shake that! Jennifer Lopez has no problem showing off her famed backside. The 47-year-old World of Dance judge flaunted her curves in a throwback workout pic, posted by pal Dwayne "The Rock" Johnson.

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"#TBT gettin' after it hard core with my family and fellow gym beast @jlo," Johnson, 45, captioned the shot. "#HardestWorkersInTheRoom #Sistah."

In the Instagram photo, Lopez's back is facing the camera as she poses in black spandex pants and a crop top.

The Shades of Blue star wasn't wearing makeup and pulled her hair up in a top knot for her workout. Johnson sported a cut-off tank top, flashing his impressive biceps.

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The photo appears to be from back in January, when J.Lo posted a gym selfie with The Rock, writing, "Just a couple of gym rats gettin' it in!! @therock thanks for the love and for all the positive energy and inspiration you put out into the world!! #hardworkwins#youcantstopwhatwontstop #erryday."

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Jennifer Lopez out and about

Jennifer Lopez attends The Robin Hood Foundation's 2018 benefit on May 14, 2018, where the poverty-fighting foundation partnered with GREATS to showcase a hot new limited-edition sneaker that looks good and gives back. 

(Photo by Kevin Mazur/Getty Images for Robin Hood)

NEW YORK, NY - MAY 14: Jennifer Lopez attends The Robin Hood Foundation's 2018 benefit at Jacob Javitz Center on May 14, 2018 in New York City, where guests 
NEW YORK, NY - MAY 14: Jennifer Lopez and Alex Rodriguez attend The Robin Hood Foundation's 2018 benefit at Jacob Javitz Center on May 14, 2018 in New York City. (Photo by Kevin Mazur/Getty Images for Robin Hood)
NEW YORK, NY - MAY 14: (Exclusive Coverage) Jennifer Lopez performs on stage during The Robin Hood Foundation's 2018 benefit at Jacob Javitz Center on May 14, 2018 in New York City. (Photo by Kevin Mazur/Getty Images for Robin Hood)
NEW YORK, NY - MAY 10: Jennifer Lopez and Alex Rodriguez seen in Manhattan on May 10, 2018 in New York City. (Photo by Robert Kamau/GC Images)
TODAY -- Pictured: Jennifer Lopez and Melissa McCarthy on Wenesday, May 9, 2018 -- (Photo by: Nathan Congleton/NBC/NBCU Photo Bank via Getty Images)
NEW YORK, NY - MAY 09: Jennifer Lopez Visits 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center on May 9, 2018 in New York City. (Photo by Theo Wargo/Getty Images for NBC)
NEW YORK, NY - MAY 07: Recording artist Jennifer Lopez attends the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Theo Wargo/Getty Images for Huffington Post)
NEW YORK, NY - MAY 07: Jennifer Lopez and Alex Rodriguez attends the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Jackson Lee/Getty Images)
NEW YORK, NY - MAY 07: Jennifer Lopez (L) and Alex Rodriguez attend the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Kevin Tachman/Getty Images for Vogue)
NEW YORK, NY - MAY 07: Alex Rodriguez (L) and Jennifer Lopez are seen at the Balmain after party at Boom Boom Room at the Standard Hotel at on May 7, 2018 in New York City. (Photo by TheStewartofNY/GC Images)
NEW YORK, NY - MAY 06: Jennifer Lopez seen on location for 'Second Act' in SoHo on May 6, 2018 in New York City. (Photo by James Devaney/GC Images)
UNIVERSAL CITY, CA - MAY 02: Actress Jennifer Lopez attends NBCUniversal's Summer Press Day 2018 at The Universal Studios Backlot on May 2, 2018 in Universal City, California. (Photo by Alberto E. Rodriguez/Getty Images)
NORTH HOLLYWOOD, CA - MAY 01: Jennifer Lopez attends FYC Event For NBC's 'World Of Dance' at Saban Media Center on May 1, 2018 in North Hollywood, California. (Photo by Araya Diaz/WireImage)
LAS VEGAS, NV - APRIL 26: Jennifer Lopez attends the 2018 Billboard Latin Music Awards at the Mandalay Bay Events Center on April 26, 2018 in Las Vegas, Nevada. (Photo by Sam Wasson/FilmMagic)
LAS VEGAS, NV - APRIL 26: Jennifer Lopez attends the 2018 Billboard Latin Music Awards at the Mandalay Bay Events Center on April 26, 2018 in Las Vegas, Nevada. (Photo by Sam Wasson/FilmMagic)
NEW YORK, NY - APRIL 24: Jennifer Lopez performs on stage during the 2018 Time 100 Gala at Jazz at Lincoln Center on April 24, 2018 in New York City.� (Photo by Kevin Mazur/Getty Images for Time)
NEW YORK, NY - APRIL 24: Jennifer Lopez attends the 2018 Time 100 Gala at Jazz at Lincoln Center on April 24, 2018 in New York City. (Photo by Ben Gabbe/Getty Images for Time)
LOS ANGELES, CA - APRIL 01: Jennifer Lopez looks on during a MLB game between the San Francisco Giants and the Los Angeles Dodgers on April 1, 2018 at Dodger Stadium in Los Angeles, CA. (Photo by Brian Rothmuller/Icon Sportswire via Getty Images)
NEW YORK, NY - MARCH 04: Jennifer Lopez attends 'Project Destined' Yankees Shark Tank Presentations at Yankee Stadium on March 4, 2018 in New York City. (Photo by Mark Sagliocco/Getty Images)
NEW YORK, NY - MARCH 04: Jennifer Lopez and Alex Rodriguez attend 'Project Destined' Yankees Shark Tank Presentations at Yankee Stadium on March 4, 2018 in New York City. (Photo by Mark Sagliocco/Getty Images)
MINNEAPOLIS, MN - FEBRUARY 03: Recording artist Jennifer Lopez performs onstage during the 2018 DIRECTV NOW Super Saturday Night Concert at NOMADIC LIVE! at The Armory on February 3, 2018 in Minneapolis, Minnesota. (Photo by Jeff Kravitz/FilmMagic)
MINNEAPOLIS, MN - FEBRUARY 03: Recording artist Jennifer Lopez performs onstage during the 2018 DIRECTV NOW Super Saturday Night Concert at NOMADIC LIVE! at The Armory on February 3, 2018 in Minneapolis, Minnesota. (Photo by Kevin Mazur/Getty Images for DirecTV)
MINNEAPOLIS, MN - FEBRUARY 03: Recording artist Jennifer Lopez attends the 2018 DIRECTV NOW Super Saturday Night Concert at NOMADIC LIVE! at The Armory on February 3, 2018 in Minneapolis, Minnesota. (Photo by Kevin Mazur/Getty Images for DirecTV)
LOS ANGELES, CA - JANUARY 31: Jennifer Lopez at the Guess Spring 2018 Campaign Reveal starring Jennifer Lopez on January 31, 2018 in Los Angeles, California. (Photo by Donato Sardella/Getty Images for Guess, Inc.)
UNIVERSAL CITY, CA - JANUARY 30: Actress/singer/dancer Jennifer Lopez attends the photo op for NBC's 'World Of Dance' held at NBC Universal Lot on January 30, 2018 in Universal City, California. (Photo by Albert L. Ortega/Getty Images)
LAS VEGAS, NV - JANUARY 27: Jennifer Lopez performs onstage during Calibash Las Vegas at T-Mobile Arena on January 27, 2018 in Las Vegas, Nevada. (Photo by Michael Tran/Getty Images)
LOS ANGELES, CA - JANUARY 20: Jennifer Lopez attends Calibash Los Angeles 2018 at Staples Center on January 20, 2018 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for SBS)
NEW YORK, NY - DECEMBER 08: Jennifer Lopez hails a cab on the set of 'Second Act' on December 8, 2017 in New York City. (Photo by Gotham/GC Images)
NEW YORK, NY - DECEMBER 08: Vanessa Hudgens and Jennifer Lopez seen on location for 'Second Act' in the Flatiron District on December 8, 2017 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - DECEMBER 05: Jennifer Lopez seen out shopping in SoHo on December 5, 2017 in New York City. (Photo by Robert Kamau/GC Images)
NEW YORK, NY - DECEMBER 05: Jennifer Lopez seen on location for 'Second Act' in SoHo on December 5, 2017 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - DECEMBER 04: Jennifer Lopez seen on location for 'Second Act' in Central Park on December 4, 2017 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - NOVEMBER 28: Jennifer Lopez seen on location for 'Second Act' at the World Trade Center on November 28, 2017 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - NOVEMBER 27: Vanessa Hudgens and Jennifer Lopez seen on location for 'Second Act' at South Street Seaport on November 27, 2017 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - NOVEMBER 07: Jennifer Lopez seen on location for 'Second Act' in Woodside on November 7, 2017 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - NOVEMBER 06: Jennifer Lopez and Alex Rodriguez attend Prostate Cancer Foundation Presents the 2017 New York Dinner on November 6, 2017 in New York City. (Photo by Sylvain Gaboury/Patrick McMullan via Getty Images)
DUBAI, UNITED ARAB EMIRATES - NOVEMBER 16: Jennifer Lopez Jennifer Lopez in concert at BASE Club on November 16, 2017 in Dubai, United Arab Emirates. PHOTOGRAPH BY Barcroft Images (Photo credit should read Barcroft Images / Barcroft Media via Getty Images)
NEW YORK, NY - OCTOBER 27: Leah Remini and Jennifer Lopez seen on location for 'Second Act' in Queens on October 27, 2017 in New York City. (Photo by James Devaney/GC Images)
THE BROOKLYN BOROUGH OF NEW YORK CITY, NY - OCTOBER 17: Jennifer Lopez performs Tidal X: Brooklyn at Barclays Center on October 17, 2017 in the Brooklyn borough of New York City, New York. (Photo by Shareif Ziyadat/FilmMagic)
LOS ANGELES, CA - OCTOBER 14: In this handout photo provided by One Voice: Somos Live!, Jennifer Lopez (L) and Kim Kardashian participate in the phone bank onstage during 'One Voice: Somos Live! A Concert For Disaster Relief' at the Universal Studios Lot on October 14, 2017 in Los Angeles, California. (Photo by Kevin Mazur/One Voice: Somos Live!/Getty Images)
LOS ANGELES, CA - OCTOBER 14: In this handout photo provided by One Voice: Somos Live!, singer Jennifer Lopez speaks onstage during 'One Voice: Somos Live! A Concert For Disaster Relief' at the Universal Studios Lot on October 14, 2017 in Los Angeles, California. (Photo by Kevin Winter/One Voice: Somos Live!/Getty Images)
WEST HOLLYWOOD, CA - SEPTEMBER 19: Jennifer Lopez attends NBC's 'World of Dance' celebration at Delilah on September 19, 2017 in West Hollywood, California. (Photo by Jason LaVeris/FilmMagic)
NEW YORK, NY - SEPTEMBER 26: Singer/Actress Jennifer Lopez and Alex Rodriguez are seen in Midtown on September 26, 2017 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - AUGUST 31: Jennifer Lopez seen on location for a music video in Manhattan on August 31, 2017 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - AUGUST 24: Jennifer Lopez seen on location for 'Shades of Blue' in Queens on August 24, 2017 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - AUGUST 16: Jennifer Lopez seen filming on location for 'Shades of Blue' in Brooklyn on August 16, 2017 in New York City. (Photo by James Devaney/GC Images)
MIAMI, FL - JULY 23: (Exclusive Coverage) Jennifer Lopez and Alex Rodriguez attend Prime 112 Restaurant on July 23, 2017 in Miami, Florida. (Photo by Gustavo Caballero/GC Images)
NEW YORK, NY - JULY 06: Jennifer Lopez, Ray Liotta, Vincent Laresca films a scene where a suicide jumper lands on a car for 'Shades of Blue' on July 6, 2017 in New York City. (Photo by Gotham/GC Images)
NEW YORK, NY - JUNE 30: Jennifer Lopez performs during the Macy's 4th of July Firework Show at Hunter's Point South Park on June 30, 2017 in New York City. (Photo by James Devaney/GC Images)
BEVERLY HILLS, CA - MARCH 20: Jennifer Lopez attends the 2017 NBCUniversal summer press day The Beverly Hilton Hotel on March 20, 2017 in Beverly Hills, California. (Photo by Jason LaVeris/FilmMagic)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured (l-r): Jennifer Lopez -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - MARCH 02: Jennifer Lopez leaves 'The Daily Show with Trevor Noah' on March 2, 2017 in New York City. (Photo by James Devaney/GC Images)
LATE NIGHT WITH SETH MEYERS -- Episode 499 -- Pictured: Actress Jennifer Lopez on March 2, 2017 -- (Photo by: Lloyd Bishop/NBC/NBCU Photo Bank via Getty Images)
NEW YORK, NY - MARCH 02: Actress/Singer Jennifer Lopez is seen outside the today Show on March 2, 2017 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - MARCH 02: Jennifer Lopez arrives to NBC's 'Late Night With Seth Meyers' show at Rockefeller Center on March 2, 2017 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - MARCH 01: Jennifer Lopez visits 'The View' on March 01, 2017 in New York, NY. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
SHADES OF BLUE -- Season 2 Premiere Party -- Pictured: Jennifer Lopez on Wednesday, March 1, 2017 -- (Photo by: Peter Kramer/NBC/NBCU Photo Bank via Getty Images)
NEW YORK, NY - MARCH 01: Jennifer Lopez arrives to The Roxy for 'Shades Of Blue' Season 2 Premiere on March 1, 2017 in New York City. (Photo by James Devaney/GC Images)
THE TONIGHT SHOW STARRING JIMMY FALLON -- Episode 0634 -- Pictured: Actress Jennifer Lopez during a Dance Battle on March 1, 2017 -- (Photo by: Andrew Lipovsky/NBC/NBCU Photo Bank via Getty Images))
LOS ANGELES, CA - FEBRUARY 12: Singer/actress Jennifer Lopez attends the 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
UNIVERSAL CITY, CA - JANUARY 25: (L-R) Dancer Derek Hough, singer-actress-dancer Jennifer Lopez, singer-songwriter-dancer Ne-Yo and actress-dancer Jenna Dewan Tatum attend the Photo Op for NBC's 'World Of Dance' at NBC Universal Lot on January 25, 2017 in Universal City, California. (Photo by Jeffrey Mayer/WireImage)
LOS ANGELES, CA - JANUARY 18: Actress/singer Jennifer Lopez arrives at People's Choice Awards 2017 at Microsoft Theater on January 18, 2017 in Los Angeles, California. (Photo by Allen Berezovsky/Getty Images for Fashion Media)
PASADENA, CA - JANUARY 18: Jennifer Lopez attends the 2017 NBCUniversal Winter Press Tour - Day 2 at Langham Hotel on January 18, 2017 in Pasadena, California. (Photo by JB Lacroix/WireImage)
PASADENA, CA - JANUARY 18: Actors Ray Liotta (L) and Jennifer Lopez of 'Shades of Blue' pose for a portrait in the NBCUniversal Press Tour portrait studio at The Langham Huntington, Pasadena on January 18, 2017 in Pasadena, California. (Photo by: Maarten de Boer/NBC/NBCU Photo Bank via Getty Images) NUP_176963_3543.jpg
LOS ANGELES, CA - JANUARY 18: Actress/recording artist Jennifer Lopez (L) and recording artist/TV personality Blake Shelton attend the People's Choice Awards 2017 at Microsoft Theater on January 18, 2017 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for People's Choice Awards)
NEW YORK, NY - NOVEMBER 21: Actess Jennifer Lopez is seen set of 'Shades Of Blue' on November 21, 2016 in New York City. (Photo by Raymond Hall/GC Images)
LAS VEGAS, NV - NOVEMBER 17: Singer/actress Jennifer Lopez attends the 17th annual Latin Grammy Awards on November 17, 2016 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
LAS VEGAS, NV - NOVEMBER 17: Jennifer Lopez (L) and Marc Anthony perform onstage during the 17th Annual Latin Grammy Awards held at T-Mobile Arena on November 17, 2016 in Las Vegas, Nevada. (Photo by Michael Tran/FilmMagic)
LAS VEGAS, NV - NOVEMBER 17: Singer/actress Jennifer Lopez attends The 17th Annual Latin Grammy Awards at T-Mobile Arena on November 17, 2016 in Las Vegas, Nevada. (Photo by John Parra/WireImage)
NEW YORK, NY - NOVEMBER 02: Jennifer Lopez, Ray Liotta filming Nbc-Tv's 'Shades Of Blue' on November 2, 2016 in New York City. (Photo by Steve Sands/GC Images)
MIAMI, FL - OCTOBER 29: Jennifer Lopez performs during the Get Loud for Hillary Clinton at GOTV Concert in Miami at Bayfront Park Amphitheatre on October 29, 2016 in Miami, Florida. (Photo by John Parra/FilmMagic)
MIAMI, FL - OCTOBER 29: Jennifer Lopez performs during the Get Loud for Hillary Clinton at GOTV Concert in Miami at Bayfront Park Amphitheatre on October 29, 2016 in Miami, Florida. (Photo by John Parra/FilmMagic)
MIAMI, FL - OCTOBER 29: Jennifer Lopez, Hillary Clinton and Marc Anthony are seen at the Jennifer Lopez Gets Loud for Hillary Clinton at GOTV Concert in Miami at Bayfront Park Amphitheatre on October 29, 2016 in Miami, Florida. (Photo by John Parra/FilmMagic)
NEW YORK, NY - OCTOBER 25: Jennifer Lopez filming on October 25, 2016 in New York City. (Photo by BBD/GC Images)
NEW YORK, NY - AUGUST 28: Jennifer Lopez attends Epic Summer Hosted By DJ Khaledat Marquee on August 28, 2016 in New York City. (Photo by Shareif Ziyadat/Getty Images)
EAST HAMPTON, NY - AUGUST 20: Jennifer Lopez attends the Apollo in the Hamptons 2016 party at The Creeks on August 20, 2016 in East Hampton, New York. (Photo by Patrick McMullan/Patrick McMullan via Getty Images)
NEW YORK, NY - AUGUST 23: Jennifer Lopez is seen at the film set of 'Shades of Blue' in Prospect Park on August 23, 2016 in New York City. (Photo by Tal Rubin/GC Images)
LOS ANGELES, CA - AUGUST 14: Jennifer Lopez and Kerry Washington attend the Jen Klein Day of Indulgence 2016 on August 14, 2016 in Los Angeles, California. (Photo by Amy Graves/WireImage)
LOS ANGELES, CA - JULY 16: Actress/singer Jennifer Lopez arrives at the screening of 'Ice Age: Collision Course' at Zanuck Theater at 20th Century Fox Lot on July 16, 2016 in Los Angeles, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
NEW YORK, NY - MAY 14: Jennifer Lopez arrives to the Beacon Theatre on May 14, 2018 in New York City. (Photo by James Devaney/GC Images)
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