There's a lot of folklore about leprechauns, including one myth that if you catch a leprechaun he has to grant you three wishes--kind of like a genie, but shorter, uglier, and probably way more of an asshole about it. With St. Patrick's Day coming this Friday, we asked Lecrae, Ruth B, James Blunt, Chromeo and other artists what they would wish for if they captured one of the mischievous green guys.