Loose LipsOh Christ. Heidi Montag has a new "song" called "Overdosin'." Listen at your own peril to this vocoder-ed out mess. It sounds like Tiffany after too many whip-its. • All you now-grown New Kids on the Block enthusiasts, it's your lucky day: Donnie is getting a divorce. Try not to swoon too hard. • An "expert" tells Us that John Mayer's behavior in the post-Jennifer Aniston break-up melee is "an ego thing." Funny, we think it's just an "asshole thing." [Dlisted, TMZ, Us]