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 at the Jeremy Scott and Adidas Party on Saturday (12.04.14).

A source said: ''Diplo was hanging out with Katy pretty much the whole night.''

Another source added to RadarOnline.com: ''They've been friends forever. It definitely looked like more than 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, whose real name is Thomas Wesley Pentz.

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.''

Katy - who was previously married to Russell Brand - and Diplo were seen together again backstage on Sunday (13.04.14), and left together after watching Lana Del Rey perform.

News of a possible new romance for the 'Dark Horse' singer could disappoint Robert Pattinson's friends, as it was previously reported the 'Twilight Saga' hunk's pals were hoping for a relationship between the pair after they were also seen hanging out at Coachella.