Last night, Armani Exchange and T-Mobile hosted their annual Neon Carnival at Coachella, and stars from Paris Hilton to Usher headed to the desert for the party. Paris was in attendance with her boyfriend Afrojack, who played the music festival earlier in the weekend, and at one point they hit the stage so Paris could dance above the crowd. Usher hit up several rides at the carnival-themed soiree, which lasted until after 3:00 in the morning, with his friends. We also spotted Whitney Port and a friend riding the bumper cars together and Dylan McDermott hitting the packed dance floor. Rounding out the crowd were cute Coachella couples Jamie Chung and Bryan Greenberg, as well as Emma Roberts and Chord Overstreet. Emile Hirsch and Gerard Butler were also on hand for the bash. Gerard has been a Coachella fixture at the parties and on site at the festival all weekend — catch up on our coverage for all the celebs at Coachella so far!