Ah, Father's Day. A day when all of us, rich and poor, famous and anonymous, get together with our families and try to keep our long simmering resentments from boiling over. Kevin Federline celebrated the holiday like so many others, in a kid-free Las Vegas nightclub. Naturally,Federline nabbed a Father of the Year Award at club Prive. In an item that is layered with "WTF?" Us Magazine magazine attempts to explain the inexplicable.