Katy Perry and Diplo might have decided to go their separate ways back in May, but it sounds like this couple is definitely back on — or, at the very least, they’ve decided to stay good friends.

According to People, Katy and Diplo were spotted together in Las Vegas on Monday Night where Katy was hanging out with her pals to celebrate a friend’s birthday at a nightclub called XS. And although the fact that they were both there that night could’ve totally been by chance — Katy was a party guest and Diplo was the DJ — there may have been more to it than that.

“Even though she was on stage, most people didn’t know she was there,” an onlooker said. “She was twerking really hard … and Diplo played ‘Dark Horse.’”

 Is it possibly Katy got twerking lessons from her pal (and occasional kissing buddy) Miley Cyrus? Hmm.

Katy and Diplo were also seen together before they hit the club. Earlier in the night they joined 14 of their closest friends at Andrea’s at Encore for dinner, drinks, and ice cream. Yum!

So what do you think — Are Katy and Diplo back together? Hit the comments and let us know what you think!

Source: People