Katy Perry and Diplo appeared to be "more than friends" at Coachella this weekend. The 'Roar' hitmaker - who recently split from John Mayer after 18 months of dating - has been pals with the DJ for a long time, but onlookers at the first weekend of the Californian music festival said they looked closer than ever on Saturday. A source said: "Diplo was hanging out with Katy pretty much the whole night." Another source added: "They've been friends forever. It definitely looked like more than that! At one point he even had his arms around her." The 29-year-old singer reportedly had one female fan thrown out of the party - which she hadn't been invited to - after spending too long with Diplo. The source added: "Katy had the girl thrown out! She was yelling and kind of upset about it. The girl didn't have a wristband and was a total sloppy party crasher, but still, it was kind of surprising."