Rihanna, Usher and other Stars Join Lineup for "The GRAMMY® Nominations Concert Live!

54th Annual GRAMMY Awards. (PRNewsFoto/The Recording Academy) 16 Nov 2011 13:00 Africa/Lagos Rihanna and Usher Rihanna, The Band Perry and Usher Added to the Stellar Lineup for "The GRAMMY® Nominations Concert Live!! — Countdown To Music's Biggest Night®" CBS Entertainment Special Will Announce Nominations for the 54th Annual GRAMMY Awards® Live from the Nokia Theatre L.A. LIVE on Nov. 30 Telecast Will Feature a Special Live Announcement Regarding a Historic Band Reunion Set to Take Place on the GRAMMY Stage in February 2012 Following the One-Hour Live Broadcast, Guests Will Be Treated To an Exclusive Concert by The Band Perry. The Band Perry PR Newswire SANTA MONICA, Calif., Nov. 16, 2011 SANTA MONICA, Calif., Nov. 16, 2011 /PRNewswire/ -- Four-time GRAMMY® winner Rihanna, country music sensation The Band Perry and seven-time GRAMMY winner Usher are the latest performers added to the stellar lineup for "The GRAMMY Nominations Concert Live!! — Countdown To Music...