This year, two-time Grammy winner LL Cool J will serve as the first official Grammy host in seven years. So why him and why now? Well, as the host of the Grammy Nominations Concert Live for the past four years, he's had plenty of training in what the Recording Academy wants. And if he has questions, he can always ask pals and previous Grammy hosts Ellen DeGeneres, Jon Stewart and Queen Latifah for pointers. LL calls hosting the event, which airs Sunday, Feb. 12 at 8 p.m. on CBS, "a dream come true."