Buzz Bites (3/30/11): Enrique Iglesias Drops Out Of Britney Spears' Summer Tour

+ That was fast -- just 10 hours after the announcement that he'd be joining Britney Spears on the road this summer, Enrique Iglesias has pulled out of her North American tour. (Buzznet) + The trailer for MTV's Britney Spears special "I Am the Femme Fatale" is here! Watch "Britney Spears: I Am the Femme Fatale" this Sunday, April 3, at 9 p.m. (MTV News) + Lady Gaga -- singer, songwriter, egg