Paris Hilton and Kevin Federline were spotted partying together at TAO Nightclub in Las Vegas. This wasn't just a one shot picture. In fact, X17 had photos of them dancing and hanging out together. Click here to see them. I find this very interesting considering the fact that Britney Spears is still walking around with her wedding ring on and Paris was once her good friend. I know I am jumping to conclusions... but wouldn't this be crazy?!