The 2011 NBA All-Star Weekend will feature Keri Hilson taking the stage in Los Angeles. The R&B star will be singing the U.S. National Anthem at All-Star Saturday Night, airing at 8pm ET on TNT, and then performing her hit single ‘Pretty Girl Rock’ during halftime at Sunday’s All-Star Game airing on NBA TV, starting at 8pm ET live from the Staples Center.