David Guetta performs at the 54th annual Grammy Awards on Sunday, Feb. 12, at the Staples Center in Los Angeles.
Jennifer Hudson performs “I Will Always Love You” in memory of the late Whitney Houston during the Grammys.
Nicki Minaj kicks off her Grammys performance with "I Feel Pretty" from "West Side Story" before launching into her new single "Roman Holiday."
Glen Campbell, left, sings "Rhinestone Cowboy" with Reid Perry of The Band Perry, center, and Blake Shelton during a tribute to the country singer, who revealed last summer that he has Alzheimer's. Campbell was honored with a lifetime achievement award.
Justin Vernon of the band Bon Iver accepts the award for best new artist. Tony Bennett and Carrie Underwood presented the trophy.
Katy Perry kicks off her performance with her hit song "E.T." The tune suddenly stopped and switched to "Part of Me," a song about a bad romance.
The Beach Boys perform “Good Vibrations,” their first live performance in more than two decades. After the set, Brian Wilson said, "It was a different experience, and it was a thrill for me. Just being on stage together gives us a chance to express ourselves vocally and instrumentally."
Taylor Swift performs “Mean” at the Grammys.
Paul McCartney performs the song "My Valentine" from his new album at the Grammys.
Dave Grohl and the Foo Fighters perform their Grammy nominated song “Walk” outside the Staples Center.
Rihanna and Chris Martin of Coldplay perform at the Grammys. Rihanna started with a solo of "We Found Love," and the two sang "Princess of China" and Coldplay finished with "Paradise."
Lady Gaga, left, Miranda Lambert and Blake Shelton sit in the audience during the Grammys.
Singers Jason Aldean and Kelly Clarkson perform their duet "Don't You Wanna Stay."
Chris Brown performs "Turn Up the Music" and "Beautiful People" at the Grammys.
Adele, wearing a custom black Armani gown and a 12.4 carat diamond ring, accepts the award for best pop solo performance for "Someone Like You." She later took home trophies for album, record and song of the year, among others. Of "21," she said, "this record was inspired by something really normal, everyone's gone through it, which is a rubbish relationship."
Bruno Mars performs "Runaway Baby" and tells the audience to have some fun during his set.
Alicia Keys, left, and Bonnie Raitt perform "Sunday Kind of Love."
The audience applauds as singer Whitney Houston, who died on Saturday, Feb. 11, is shown in a 1994 Grammy performance during the 54th annual Grammy Awards.
Host LL Cool J opens the show by leading a prayer for Whitney Houston.
Singer Bruce Springsteen kicks off the Grammy Awards with "We Take Care of Our Own."
Singer Adam Levine of Maroon 5 and his girlfriend, Anne Vyalitsyna, pose on the red carpet at the 54th annual Grammy Awards on Sunday, Feb. 12, in Los Angeles.
Country star Taylor Swift poses in a high-necked Zuhair Murad gown at the Grammys.
Singer Rihanna shows off her figure in a custom Giorgio Armani gown on the red carpet.
Singer Kelly Rowland wears Alberta Ferretti to the Grammys.
Singer Nicki Minaj shows off her Versace gown on the Grammys red carpet with a man dressed as a pope.
Singer Alicia Keys arrives at the Grammys in an Alexandre Vauthier dress.
Singer, actress and former "Dancing With the Stars" pro Julianne Hough wears a strapless Kaufman Franco dress on the Grammys red carpet. Her boyfriend, Ryan Seacrest, reportedly picked out the gown.
Singer Robyn strikes a pose as she arrives on the Grammys red carpet.
Singer Carrie Underwood poses in a sequined Gomez-Gracia tulle gown on the Grammys red carpet.
Singer Bonnie McKee shows off her unusual bright outfit on the Grammys red carpet.
Singer Cyndi Lauper shows off her dark youthful look at the Grammys.
Singer Corinne Bailey Rae shows off a gown by "Project Runway" season four champ Christian Siriano.
Rapper Wiz Khalifa, in Dolce & Gabbana, and his girlfriend, model Amber Rose in Versace, arrive at the Grammys.
Singer Sasha Gradiva literally shows off her guns as she arrives for the Grammys.
"Jersey Shore" star Nicole "Snooki" Polizzi shows off her slender new figure in a body-hugging Bebe dress on the Grammys red carpet.
Singer Fergie of the Black Eyed Peas wears Neil Lane jewelry with a haute couture gown from Paul Gaultier at the Grammys.