The 25-year-old musician is out promoting his new album, Everything Is 4.
“I just asked him, ‘You want to play harmonica on one of my songs?’ And he was like, ‘Yeah, man, (we’re) family. It’s all good,’” Jason shared.
He continued, “And then (I asked), ‘Would you want to sing on it, too?’ He was like, ‘Man, if I hear that song on the radio and I’m not on it, I’m going to whoop your a**.’ So the rest is history.”
Posted to: Jason Derulo