Los Angeles "GRAMMY Nominations Concert Live!!" November 30, 2011 / 9:57 PM PST / CBS News (Credit: Frederic J. Brown/Getty Images) Lady Gaga (Credit: Frederic J. Brown/Getty Images) Nicki Minaj (Credit: Kevin Winter/Getty Images) Ken Ehrlich (Credit: Kevin Winter/Getty Images) Katy Perry (Credit: Kevin Winter/Getty Images) LL Cool J (Credit: Kevin Winter/Getty Images) James Todd Smith 'LL Cool J' and NARAS President Neil Portnow (Credit: Kevin Winter/Getty Images) Valerie Simpson and Usher (Credit: Kevin Winter/Getty Images) Bruno Mars (Credit: Kevin Winter/Getty Images) Jason Aldean and Chris 'Ludicris' Bridges (Credit: Kevin Winter/Getty Images) Teraji P. Henson (Credit: Kevin Winter/Getty Images) Nicki Minaj (Credit: Kevin Winter/Getty Images) Scorpio and Melle Mel (Credit: Kevin Winter/Getty Images) Common, LL Cool J, Melle Mel and Scorpio (Credit: Kevin WInter/Getty Images) The Band Perry (Credit: Frederic J. Brown/AFP/Getty Images)