Taylor Swift
T. Swift had her hands full with her Grammys that she could barely hold them all in the press room. She took home four awards that night including Album of the Year.
Pink
Pink wowed the audience with a height-defying acrobatic routine while performing "Glitter in the Air." Is there anything she can't do?
Black Eyed Peas
Boom Boom Pow! apl.de.ap, will.i.am, Fergie and Taboo had the crowd on their feet performing "I Gotta Feeling."
Justin Bieber
Bieber Fever was real in 2010! A young Justin rocked his iconic haircut and flashed a smile on the red carpet.
Green Day
The punk rock band shared the stage with the Broadway cast of "American Idiot" to sing "21 Guns."
Paris & Prince Jackson
The "King of Pop's" eldest children delivered an emotional speech while accepting their late father's Lifetime Achievement Award.
Ciara
The "One, Two Step" singer stunned in an all-black outfit on the red carpet. Ciara was nominated for Best Pop Collaboration with Vocals for "Love Sex Magic" in 2010.
John Legend & Chrissy Teigen
The Voice judge and Cravings author were still dating when they stepped out on the red carpet in 2010. They are now married and parents to Luna and Miles.
Beyoncé
Beyoncé rocked glitter extensions and flashed her iconic "Single Ladies" pose on the red carpet. Later in the night, she performed a mashup of her hit "If I Were a Boy" and Alanis Morisette's "You Oughta Know."
Katy Perry & Rihanna
The pop singers shared a cute moment during the awards show. We are still wondering what they were laughing about!
Miley Cyrus
She's just being Miley! Long before coming in like a "Wrecking Ball," the singer was simply enjoying a "Party in the U.S.A."
Lady Gaga
Mother Monster dazzled in a cosmic look on the red carpet after arriving in a black convertible.