Katy Perry — Sucking Face with New Man

The rebound is officially underway for Katy Perry … who was all about the PDA with her new man at Coachella … hugging, caressing and full on making out.

The guy is Robert Ackroyd — the guitar player for Florence and The Machine.

The two were also spotted together at the music festival last weekend … and according to some reports, Katy was already referring to him as her “boyfriend.”

Guess she”s finally ready to move on from her soon-to-be ex-husband Russell Brand — who filed for divorce back in December.

As our sources has previously reported, Brand and Perry have been on relatively good terms since the breakup … with Brand refusing to make a play for any of millions of dollars Perry raked in during their relationship.