AceShowbiz -

Charlie Puth and Bella Thorne are setting the record straight on their relationship. Despite those PDA-filled moments on a beach in Miami Sunday, December 18, the two have separately confirmed that they're not more than just friends.

Speaking to ET Online at Y100's Jingle Ball 2016 at the BB&T Center in Sunrise, Florida over the weekend, Charlie denied he's dating Bella. "No, she's not my girlfriend," said the singer, who got nervous when agreeing with the interviewer that he and the former Disney star looked good together.

Also shooting down the romance rumors was a source close to Bella, who assured everyone that the actress and the "One Call Away" singer were "100|percent| just friends."

Charlie and Bella might not be romantically involved right now, but that didn't stop him from showing his affection for her during his set at the 2016 iHeartRadio Jingle Ball on Sunday night. According to PEOPLE, the 25-year-old musician totally looked like he serenaded the 19-year-old beauty when he was performing on the stage.

"Charlie said that they were just friends, but during his second song, he was singing to her on stage - she was off side-stage," a source who was backstage at the event told the site.