Lance Butters Up New Dude?

3/20/2007 11:07 AM PDT BY TMZ STAFF
After a night of partying at Manhattan's swanky club Butter last night, TMZ spotted former boy-bander Lance Bass leaving the nightspot with a brand new mystery man.

A mammoth bald bodyguard escorted the two into the back of a waiting cab, which then whisked them away into the freezing cold night.

Earlier this week, TMZ spies spotted Bass in a St. Patty's Day liplock in Los Angeles. While we cant confirm that Lance's Butter bud is also his Irish kissing pal, we can confirm that Lance is loving the single life.