Singer Lady Gaga celebrates after receiving the GRAMMY for “Best Pop Vocal Album” during the GRAMMY Awards Show at the Staples Center in Los Angeles on February 13, 2011. Mick Jagger, Bob Dylan and Barbra Streisand joined rising stars and seasoned chart-toppers at the music industry’s annual Grammys awards bash. Lady Gaga, Katy Perry and teen sensation Justin Bieber were also on a star-studded roster of performers at the show in Los Angeles, where rapper Eminem hopes to seal a comeback year with a brace of awards. The Grammys are the music industry’s equivalent of the Oscars, the climax of Hollywood’s annual awards season that this year takes place in barely two weeks’ time, on February 27. AFP PHOTO / Mark RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images)