Comedian Denis Leary is a chain-smoking Masshole and proud of it, going so far as to regularly weave the song "Asshole" into his stand-up sets as a red-faced salute to people just like him. If you found that shtick wore thin, bad news: Leary and his back-up band The Enablers recently released "F.U." online, a tiresome slow-dance song that curses out anyone foolish enough to drop 99 cents on it at the iTunes store. Despite his comedy background, Leary is more of a household name now for co-creating and starring in Rescue Me, an FX drama about a group of New York firefighters dealing with the aftermath of 9/11. It's back for another season this summer, with Leary promoting it by way of another stand-up tour.