Katy Perry reportedly referred to Florence + Machine guitarist Robert Ackroyd as "her boyfriend."

The singer split from estranged husband Russell Brand at the end of last year and Katy is believed to have recently ended her romance with 22-year-old model Baptiste Giabiconi.

The beauty has apparently moved on to dating Robert, as they were seen holding hands at California music festival Coachella.

"Backstage at the Artist Lounge at Coachella last weekend, Katy kept saying her boyfriend was the guitar player for Florence + the Machine," a source told Life & Style magazine. "She and a bunch of friends were supposed to go see Dr Dre together, but Katy said she was waiting to watch her boyfriend perform!"

Days later, Robert apparently began following Katy on Twitter.

He then shared about his experience at Coachella, seemingly mentioning Katy by her initials.

"Best Coachella ever. Scratch that, best weekend ever. Dre, Snoop, Pac, Nate, Fiddy & KP. (sic)" Robert tweeted.

Katy recently released Part Of Me, a song about a tough break up. Although she wrote it two years ago, it was apt in its release.