Music fans and celebrities alike headed to the California dessert on Friday (April 10) for Coachella. And while many were there to catch the big acts on the lineup, lots of our favorite celebs also hit up some of the big parties going down in Indio, Calif.

Justin Bieber and Chris Brown were goofing around at the NYLON Midnight Garden party, while Katy Perry made an appearance to check out her friend Mia Moretti perform her DJ set. After her fiery show, Azealia Banks also hit up the party and caught up with Breezy. Meanwhile Bella Thorne, Cody Simpson, his sister Alli and girlfriend Gigi Hadid hit up the H&M party. Actress Kate Bosworth and Hunger Games star Jena Malone were chilling at the Coach Backstage party at the Soho Desert House.

There was also a lot of action on the festival grounds on the first day of Coachella. Actor Blake Anderson and Tyler the Creator were hanging out in the crowd to watch performances while Paris and Nicky Hilton were seen exploring the festival. Paris even took some selfies with festival goers. Kendall and Kylie Jenner couldn't miss this year and have been documenting their romps around Coachella on Instagram.Then in the evening, Maroon 5 frontman Adam Levine and model wifey Behati Prinsloo were having a blast backstage. Adam also bumped into Beatles legend Paul McCartney.

Find out who partied at Coachella last night and follow this post throughout the weekend to see who else showed up at this year's fest.