Rihanna: I’m Stronger, Wiser and More Aware [People] Eminem, Lady Gaga Join American Music Awards Lineup [MTV] Mariah Carey Takes a Tumble on ‘Leno’ [PopEater] Kathy Griffin signs on to host ABC’s new dance show [EW] Taylor Swift: I Might Pass Out in SNL Pitch Meeting [US]   By: Desirea LaSalle, InstantCast Staff Writer