Justin Bieber Sent Mark Wahlberg His Calvin Klein Ads, But He Wasn't Too Happy About It!

Justin Bieber has learned his lesson – don’t send pictures of yourself in your underwear to Mark Wahlberg!

The 22-year-old singer was so proud of his ads for Calvin Klein that he decided to send the photos to his friend Mark, who was a model for the underwear brand when he was younger.

“He is a very nice young man. He is a friend of mine. I’ve spent time with him. He did send me the pictures. I was like, ‘You don’t send a guy pictures like this,’” Mark said on Conan. “He was proud. It was a big deal for him to do it. I was like, I’m at 45, a dad, a husband and a father of four, I’m trying to move away from that image.”

Pictured inside: Justin stepping out in a casual outfit to have lunch at Paty’s Restaurant on Thursday (January 12) in Toluca Lake, Calif.