Nicki Minaj

(Credit: Kevin Winter/Getty Images)

Singer Nicki Minaj speaks onstage during The Grammy Nominations Concert in Los Angeles on November 30, 2011.

Katy Perry

(Credit: Kevin Winter/Getty Images)

Singer Katy Perry onstage during The Grammy Nominations Concert Live! Countdown to Music's Biggest Night at Nokia Theatre L.A. Live on November 30, 2011 in Los Angeles, California

Lady Gaga

(Credit: Frederic J. Brown/Getty Images)

Singer Lady Gaga performs at the Grammy Nominations Concert in Los Angeles on November 30, 2011.

Lady Gaga

(Credit: Frederic J. Brown/Getty Images)

Singer Lady Gaga performs at the Grammy Nominations Concert in Los Angeles on November 30, 2011.

LL Cool J

(Credit: Kevin Winter/Getty Images)

LL Cool J onstage during The Grammy Nominations Concert Live! Countdown to Music's Biggest Night at Nokia Theatre L.A. Live on November 30, 2011 in Los Angeles, California.

James Todd Smith 'LL Cool J' and NARAS President Neil Portnow

(Credit: Kevin Winter/Getty Images)

Recording artist James Todd Smith 'LL Cool J' (L) and President of the National Academy of Recording Arts and Sciences Neil Portnow onstage during The Grammy Nominations Concert Live! Countdown to Music's Biggest Night at Nokia Theatre L.A. Live on November 30, 2011 in Los Angeles, California.

Valerie Simpson and Usher

(Credit: Kevin Winter/Getty Images)

Singers Valerie Simpson (L) and Usher perform onstage during The Grammy Nominations Concert Live! Countdown to Music's Biggest Night at Nokia Theatre L.A. Live on November 30, 2011 in Los Angeles, California.

Bruno Mars

(Credit: Kevin Winter/Getty Images)

Bruno Mars onstage during The Grammy Nominations Concert Live! Countdown to Music's Biggest Night at Nokia Theatre L.A. Live on November 30, 2011 in Los Angeles, California.

Jason Aldean and Chris 'Ludicris' Bridges

(Credit: Kevin Winter/Getty Images)

Musician Jason Aldean (L) and rapper Chris 'Ludicris' Bridges perform onstage during The Grammy Nominations Concert Live! Countdown to Music's Biggest Night at Nokia Theatre L.A. Live on November 30, 2011 in Los Angeles, California.

Teraji P. Henson

(Credit: Kevin Winter/Getty Images)

Teraji P. Henson onstage durnig The Grammy Nominations Concert Live! Countdown to Music's Biggest Night at Nokia Theatre L.A. Live on November 30, 2011 in Los Angeles, California.

Ken Ehrlich

(Credit: Kevin Winter/Getty Images)

Grammy producer Ken Ehrlich speaks onstage during The Grammy Nominations Concert Live! Countdown to Music's Biggest Night at Nokia Theatre L.A. Live on November 30, 2011 in Los Angeles, California.

Nicki Minaj

(Credit: Kevin Winter/Getty Images)

Nicki Minaj onstage during The Grammy Nominations Concert Live! Countdown to Music's Biggest Night at Nokia Theatre L.A. Live on November 30, 2011 in Los Angeles, California.

Scorpio and Melle Mel

(Credit: Kevin Winter/Getty Images)

Rappers Scorpio (L) and Melle Mel perform onstage during The Grammy Nominations Concert Live! Countdown to Music's Biggest Night at Nokia Theatre L.A. Live on November 30, 2011 in Los Angeles, California.

Common, LL Cool J, Melle Mel and Scorpio

(Credit: Kevin WInter/Getty Images)

Rappers Common, LL Cool J, Melle Mel, and Scorpio perform onstage during The Grammy Nominations Concert Live! Countdown to Music's Biggest Night at Nokia Theatre L.A. Live on November 30, 2011 in Los Angeles, California.

The Band Perry

(Credit: Frederic J. Brown/AFP/Getty Images)

The Band Perry performs at the The Grammy Nominations Concert in Los Angeles on November 30, 2011.