Beyonce, Jay Z, Kelly Rowland, Ryan Tedder and Ed Sheeran were among the stars who checked out Justin Timberlake's post-Grammys concert at the Hollywood Palladium late on Sunday night (10Feb13). The singer's former 'N Sync bandmate Lance Bass was also spotted at the gig. Timberlake, who had earlier performed at the Grammys, hit the stage with a 16-piece band.