This is the sweetest thing.
While Selena Gomez was performing during one of her concerts, boyfriend Justin Bieber surprised her on stage!
She wasn't the only one in shock, though. Listen to the audience go insane!
Although we're not sure why he decided to sing the break-up classic, Cry Me A River, we still think the whole thing was pretty cute.
One thing that has evolved passed cute, however, would be the Biebs' voice!
He does not sound like a little guy anymore. He is a man!
Watch the video and see for Urself!
Tags: concert, fans, surprise, sweet, tour