Rihanna, Usher: Confirmed to perform at Grammy nominee concert
Performers Rihanna, Usher and The Band Perry will perform at the The Grammy Nominations Concert Live!! - Countdown To Music's Biggest Night on CBS.
All the three artists join rappers Ludacris and Lupe Fiasco, country entertainers Sugarland and Jason Aldean, and Lady GaGa in the lineup.
On November 30, LL Cool J will host the one-hour program at the Nokia Theatre in Los Angeles.
To celebrate its fourth year live on primetime television, the Grammys nominee show announces the nominations in many categories along with special performances by past Grammy winners or nominees.
Several changes will be made to next year's Grammys, including the the reduction of categories from 109 to 78.
On February 12, 2012, The 54th Grammy Awards will take place, at the Staples Center in Los Angeles.