Britney Spears, K-Fed Roll to Vegas

Separately, of course. No reunion here.

Friday evening, Britney landed in Sin City - just a few hours after Kevin Federline arrived to host his "Father of the Year" awards party there.

No, seriously. The FedEx man hosted a bash at Prive nightclub in Planet Hollywood for all the unwed dads of the world. Only in Las Vegas.

Nice editing job, Prive. Good to know K-Fed Celebrate's Father's Day.

What was Britney Spears doing in town, then? Why, just celebrating with someone special at his birthday - that would be papa Jamie Spears.