KFederline071208_01_X17.jpgKevin Federline KFederline071208_07_X17.jpg Britney Spears may have spent the weekend shopping with her mother - but her ex-hubby Kevin Federline spent it out with the boys at Hollywood's hottest spot!

We ran into K-Fed as he and his boys hit up Beso for dinner before heading over to Kress for a little partying. Oddly enough, we spotted another one of Britney's exes hitting up the same club on the same night - think K-Fed and Justin had any interactions inside?