But it didn’t go entirely to plan.
One couple taking a tour of the hit sitcom’s set at Warner Bros. Studios in Burbank, California, didn’t realize it was the pop star who was taking pictures of them until they were sat in the “Ellen” studio and the segment was being aired.
“Dang,” Bieber told the couple. “Are you serious? You had no idea until right now? You thought it was just some weird guy?”
Check out the clip, and watch until the end, here: