Chace Crawford just won the Teen Choice Award for breakout TV star last night. (The awards show will air on Fox tonight.) So naturally ICM is trying to hang onto the 23-year-old media darling. But CW’s Gossip Girl hunk has just let the tenpercentery know he’s taking meetings with other agencies: specifically CAA, Endeavor and Paradigm. He also plans to come in and talk to the top guys at ICM now that his longtime agents there have left or been let go. In the agency biz, you either grow stars or steal stars. ICM has had more success with the former than the latter right now. Case in point: ICM’s Mad Men leading man Jon Hamm, thanks to showrunner Matt Weiner. Hamm is already receiving shout-outs for his role in Fox’s upcoming big movie The Day The Earth Stood Still which Hamm did during his hiatus between seasons. ICM also reps other Mad Men breakout stars now in demand January Jones, Vincent Kartheiser, and Aaron Staton.