Photos of Paris Hilton and Benji Madden in Las Vegas

Paris Hilton and Benji Madden spent their Fourth of July weekend in Las Vegas, watching a boxing match at Planet Hollywood before joining Nicole and Joel at the Hard Rock on Saturday. Paris and Benji kept the fighting in the ring, avoiding a run-in with Stavros Niarchos at Blush nightclub later on in the night. Apparently, Paris' ex made a quick exit when he realized the couple was going to be seated near him. Paris luckily missed out on sin city drama, although we can't say the same for Nicole.