Leonardo DiCaprio took care of business at a meeting in LA yesterday, but by the evening he was all about fun as he joined friends at the Premiere club. It was Leo's second recent night out on the town, as he was spotted at Trousdale a few days ago dancing to Willow Smith's "Whip My Hair" with friends like Chace Crawford and Sebastian Stan. It's another Gossip Girl star, though, who will share the screen with Leo in his upcoming J. Edgar Hoover biopic. Ed Westwick has signed on to the project, which begins production on Feb. 5, along with leading lady Naomi Watts. Leonardo may have to break from shooting on Feb. 27 to support his last blockbuster, Inception, at the Oscars, where the film is nominated in the best picture category — who are you most excited to see at the Academy Awards?