Christina Aguilera Videos

Cassadee Pope, winner of the third season of the NBC singing competition THE VOICE, wowed the crowd at the IMF Brickyard 400 NASCAR race this weekend with her rendition of the National Anthem. Check out her performance below!

elow, get a first listen to Robin Thicke's newest single, 'Go Stupid 4 U,' a new track from his latest album Blurred Lines, which drops July 30th.

Robin Thicke has premiered his new single, 'Give It 2 U', the second cut from his upcoming 'Blurred Lines' album. In the song, the singer teams up with Kendrick Lamar. Get a first listen below!

Robin Thicke has premiered his new single, 'Give It 2 U', the second cut from his upcoming 'Blurred Lines' album. In the song, the singer teams up with Kendrick Lamar. Get a first listen below!

Sasha Allen returned to THE VOICE last night for the live finale show. The singer teamed up with Cathia and Judith Hill for a memorable take on En Vogue's 'My Lovin' (You're Never Gonna Get It).' Check it out below!

Christina Aguilera returned to THE VOICE stage on last night's season finale, teaming up with Pitbull on 'Feel This Moment.' Check out the performance below!

Sasha Allen tells TODAY's Kathie Lee Gifford and Hoda Kotb what it was like to take time away from her kids while performing, and why she thinks Danielle Bradbery will win the competition. Check out the appearance below!

Sasha Allen takes on Whitney Houston's 'I Will Always Love You' and Donna Summers, 'Bad Girls' on last night's THE VOICE. Watch the performances below!

On last night's THE VOICE on NBC, America once again sent Sasha Allen to safety following her exciting performance on Monday night's show. During the episode, Allen teamed up with Team Usher's Michelle Chamuel on Madonna's 'Open Your Heart.' Check out the performance below!

Sasha Allen wowed the judges on last night's THE VOICE with her covers of Aretha Franklin's 'Ain't No Way' and Carrie Underwood's 'Before He Cheats'. Check out both performances below!

Prior to announcing the results, Allen joined contestants Zach and Colton Swon for a memorable take on the country hit, 'Don't You Wanna Stay.' Check out the performance below!

On last night's THE VOICE, Sasha Allen wowed the crowd and the judges once again, offering her take on David Guetta and Usher's 'Without You.' Check out the performance below!

On last night's episode of THE VOICE, Sasha Allen took to the stage to perform Emeli Sandé's 'Next to Me.' Check out Allen's rehearsal with mentor Shakira, as well as her performance below!

On last night's THE VOICE on NBC, Sasha Allen delivered one of the top performances of the night with her cover of Heart's 'Alone.' The singer was close to tears by the end of her moving performance which earned a standing ovation from her coach Shakira. Check it out below!

Last night's THE VOICE on NBC kicked off with contestants Sasha Allen, Danielle Bradbery, Holly Tucker, Justin Rivers, The Swon Brothers, Garrett Gardner, Karina Iglesias and Kris Thomas singing The Script's hit, 'Hall of Fame.' Check out the performance below!

On last night's THE VOICE on NBC, Sasha Allen coverd the Beatles classic, 'Oh! Darling. The Broadway star also performed 'We Are the Champions' along with her fellow contestants on Team Shakira. Check out both performances below!

On last night's THE VOICE on NBC, Sasha Allen knocked out the competition in a fierce battle round showdown. Her stunning version of Etta James' 'At Last' brought judge Shakira to her feet and enabled her to defeat fellow teammate Shawna P. Check out the performance below!

On last night's THE VOICE on NBC, Broadway vet Sasha Allen faced Amber Carrington in a spirited battle round as they sang a dueling duet of Pink's hit song 'Try.' Check out the performance below!

On last night's THE VOICE on NBC, Broadway's own Sasha Allen caused a sensation when she performed the Dixie Chick's 'Not Ready to Make Nice' during the competition's Blind Auditions Round. Below, check out Allen's performance as well as a backstage interview after the show.

Below, watch the 2013 KIDS CHOICE AWARDS' Host Josh Duhamel along with Pitbull and Christina Aguilera start the night off right with singing and sliming!