Philly native PnB Rock is currently on his Going Thru the Motions tour. But perofrming doesn't stop a hungry artist from hopping on a song that is running the clubs this summer.

During a West Coast tour date, Rock stopped by L.A.'s Power 105's LA Cruz show where he spit a freestyle over French Montana and Swae Lee's captivating single, "Unforgettable."

Rock opted out of kicking sixteens, though. Instead, the Atlantic Records signee did a little crooning over the Mike WiLL Made-It and Jeagan-produced instrumental.

Earlier the year, PnB released his 14-track effort, GTTM: Goin' Thru the Motions, which features the likes of YFN Lucci, A Boogie With da Hoodie, Ty Dolla $ign and Wiz Khalifa.

PnB fans can also catch him at this year's Freshpack Tour in Virginia.