Kimberly Perry of the Band Berry. (Robb Gauthier / Los Angeles Times)
Multiple-award nominee Bruno Mars makes his way onstage. (Rob Gauthier / Los Angeles Times)
Katy Perry hits the stage to announce 2011 Grammy nominees. (Rob Gauthier / Los Angeles Times)
Usher and Valerie Simpson perform a tribute medley for Nick Ashford and Jerry Leiber. (Robert Gauthier / Los Angeles Times)
Justin Aldean performs with Lucadris. (Robert Gauthier / Los Angeles Times)
Taraji P. Henson announces one of the Grammy categories. (Robert Gauthier / Los Angeles Times)
Common, L.L. Cool J, Melle Mel and Scorpio perform a cover of “The Message” at the Grammy Nominations Concert. (Robert Gauthier / Los Angeles Times)
Grandmaster Flash raps onstage while stationed behind the turntables. (Robert Gauthier / Los Angeles Times)
