Jennifer Lopez stuns in sheer gown at 'American Idol' finale, talks final two: 'They have so much talent'

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Jennifer Lopez Flaunts Her Fit Physique in Sheer Sparkly 'American Idol' Finale Gown

Part 1 of American Idol's epic series finale on Wednesday saw some of the best performances of the season so far, but nothing was more jaw-dropping than judge Jennifer Lopez's flawless finale style.

The 46-year-old pop star stunned as she took the stage in a black, semi-sheer Zuhair Murad dress that hugged her hips and flowed around her Tamara Mellon heels.

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The gorgeous gown was covered in sparkling beaded embellishments that gave Lopez the appearance of being covered in fireworks -- a fitting style for the bombastic occasion.

After the show, Lopez spoke with ET's Sophie Schillaci about the night's emotional performances by finalists La'Porsha Renae and Trent Harmon.

"I can only imagine how [Renae] is feeling, all the emotions, getting to the finale, all the stuff she's overcome," Lopez shared. "Same with Trent. They're both two amazing people who have overcome a lot."

WATCH: 'American Idol' Finale: La'Porsha Renae Tears Up, Dedicates Performance to Baby Daughter

Lopez admitted that both contestant had "so much going for them," and that I would be a tough battle for the title of American Idol.

"They're so very different. They're both very privileged voices, they're both great storytellers when they sing. They have so much talent," Lopez gushed. "So you just have to vote for who you like."

J.Lo through the years:

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Jennifer Lopez through the years
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Jennifer Lopez stuns in sheer gown at 'American Idol' finale, talks final two: 'They have so much talent'
Jennifer Lopez perform on stage at Morocco's biggest music event, Mawazine Festival in Rabat, Morocco, Friday May 29, 2015. (AP Photo/Abdeljalil Bounhar)
The actresses who will portray slain Tejano singer Selena, in an upcoming Warner Bros "Selena," pose together at a news conference June 18. Portraying the younger Selena is ten year old Becky Lee Meza of Texas and Jennifer Lopez (R) as the adult Selena.
UNDATED PUBLICITY PHOTOGRAPH-FOR USE WITH STORY BC-ENTERTAINMENT-STONE - Actress Jennifer Lopez portrays housewife 'Grace McKenna" in director Oliver Stone's latest film "U-Turn" in this undated photograph. "U-Turn" also stars Sean Penn and is currently in release in the United States. After flopping dismally at the box office with his last serious political film, Oliver Stone is hoping to re-ignite his career with the age-old staples of sex, lust, greed, betrayal and murder. ENTERTAINMENT STONE
Presenter and nominee Jennifer Lopez shows off her latest fashion at the 42nd annual Grammy Awards in Los Angeles February 23. Lopez was nominated for Best Dance Recording for her song ["Waiting For Tonight".]
Singer Jennifer Lopez performs "Love Don't Cost A Thing" at the 28th Annual American Music Awards January 8, 2001 at the Shrine Auditorium in Los Angeles.
Actress and singer Jennifer Lopez makes her way down the red carpet as she arrives at the 74th Academy Awards March 24, 2002 in Hollywood. Lopez is a presenter at this years ceremony. REUTERS/Fred Prouser MB/ME
Actress Jennifer Lopez arrives at the Mann National Theatre in Westwood for the premiere of her new movie "Gigli, July 27, 2003. Lopez and boyfriend Ben Affleck play mob enforcers involved in the kidnapping of a prosecutor's brother in order to help save a mob boss from going to prison. The movie opens August 1. REUTERS/Mike Blake MB
U.S. singer and actress Jennifer Lopez arrives for the worldwide premier of Pepsi's latest advertisement in Madrid, February 23, 2005. U.S. singer Beyonce Knowles, England soccer captain and Real Madrid star David Beckham and Jennifer Lopez all starred in the advert. REUTERS/Andrea Comas ACO/GB
Jennifer Lopez waves to the crowd as she opens the first-ever "World of JLO" shop in the U.S. in Marshall Field's Chicago State Street Store September 22, 2005. The shop houses the entire JLO and Sweetface collections, intimates, fragrances, jewelry and accessories. REUTERS/John Gress
U.S. singer and actress Jennifer Lopez arrives for Dolce & Gabbana Fall/Winter 2006/07 women's collections show at Milan Fashion Week February 23, 2006. REUTERS/Damir Sagolj
Singer Jennifer Lopez arrives for the Metropolitan Museum of Art Costume Institute Benefit Gala "Anglomania" at the Metropolitan Museum of Art in New York May 1, 2006. The gala presents a range of work by British fashion designers. REUTERS/Keith Bedford
Singer Marc Anthony and wife, singer and actress Jennifer Lopez, arrive at the 7th annual Latin Grammy Awards in New York November 2, 2006. REUTERS/Lucas Jackson (UNITED STATES)
U.S. actress and singer Jennifer Lopez smiles during a news conference to present her film 'Bordertown' running in competition at the 57th Berlinale International Film Festival in Berlin February 15, 2007. The festival runs from February 8-18. REUTERS/Arnd Wiegmann (GERMANY)
Singer Jennifer Lopez performs during the 2007 Fashion Rocks Concert at Radio City Music Hall in New York September 6, 2007. REUTERS/Lucas Jackson (UNITED STATES)
Singer and actress Jennifer Lopez poses at the premiere of the movie "The Curious Case of Benjamin Button" at the Mann's Village theatre in Westwood, California December 8, 2008. The movie opens in the U.S. on December 25. REUTERS/Mario Anzuoni (UNITED STATES)
Jennifer Lopez smiles on stage after being announced as one the judges for the 10th season of the television show "American Idol" at the Forum in Inglewood, California September 22, 2010. The new season begins on FOX January 2011. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT)
Singer Jennifer Lopez arrives at the 53rd annual Grammy Awards in Los Angeles, California February 13, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: ENTERTAINMENT) (GRAMMYS-ARRIVALS)
Singer Jennifer Lopez accepts the Favorite Latin Music Artist award at the 2011 American Music Awards in Los Angeles November 20, 2011. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (AMA-SHOW)
Singer Jennifer Lopez performs during a concert that is part of her "Dance Again World Tour" in Berlin October 13, 2012. REUTERS/Thomas Peter (GERMANY - Tags: ENTERTAINMENT)
Actress and pop star Jennifer Lopez arrives with boyfriend Casper Smart at the 70th annual Golden Globe Awards in Beverly Hills, California January 13, 2013. REUTERS/Jason Redmond (UNITED STATES - Tags: Entertainment) (GOLDENGLOBES-ARRIVALS)
Singer and actress Jennifer Lopez blows a kiss at photographers as she poses on her star after it was unveiled on the Walk of Fame in Hollywood, California June 20, 2013. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT)
Singer Jennifer Lopez performs "First Love" onstage at the 2014 Billboard Music Awards in Las Vegas, Nevada May 18, 2014. REUTERS/Steve Marcus (UNITED STATES-Tags: ENTERTAINMENT)(BILLBOARDAWARDS-SHOW)
Judge Jennifer Lopez reacts as balloons fall during the American Idol XIII 2014 Finale in Los Angeles, California May 21, 2014. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (AMERICANIDOL-SHOW)
Jennifer Lopez performs "Booty" during the 42nd American Music Awards in Los Angeles, California November 23, 2014. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (MUSIC-AMERICANMUSICAWARDS-SHOW)
Singer Jennifer Lopez wears a gown by Elie Saab as she arrives at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-ARRIVALS)
Actress Jennifer Lopez and singer Harry Connick Jr attend Fox's American Idol XIV Finalist Party at The District Restaurant in Los Angeles, California March 11, 2015. REUTERS/Jonathan Alcorn (UNITED STATES - Tags: ENTERTAINMENT)
Singer Jennifer Lopez arrives at the 2015 Billboard Music Awards in Las Vegas, Nevada May 17, 2015. REUTERS/L.E. Baskow
Actress Jennifer Lopez arrives at the 73rd Golden Globe Awards in Beverly Hills, California January 10, 2016. REUTERS/Mario Anzuoni
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The "Feel the Light" singer also talked about her time on the show, and confessed that she couldn't choose a favorite memory from all the wonderful moments she's enjoyed.

"There's been so many," Lopez said. "I only planned to do this one season and I wound up doing it for five."

WATCH: Jennifer Lopez Debuts Smokin' Hot Single Art for 'Ain't Your Mama' Ahead of 'American Idol' Performance

On Idol's star-studded grand finale on Thursday, Lopez is set to perform her new single, "Ain't Your Mama," a song she said is "very empowering."

"Guys have this tendency, once they love you in the beginning and you're the hottest woman on Earth, and then all of a sudden, it's like, 'Okay... where's my food?' It's like, 'What!? Are you kidding me? Take me out! What are you doing right now?,'" Lopez explained.

"But it's a really fun song and everybody seems to be responding to it really well so I'm happy about that," she added.

Along with Lopez's performance, Idol's final night will feature appearances by Idol alums Carrie Underwood, Kelly Clarkson, Jordin Sparks, Katharine McPhee and Kellie Pickler, among others.

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