Mark Wahlberg has come a long way since his rap persona of Markey Mark and posing in briefs for Calvin Klein, now the actor is married and a father of four. However, the past has a way of sneaking up on you and for Wahlberg it comes in the form of Justin Bieber. Bieber and Wahlberg have become good friends and Wahlberg tells Conan on Thursday's episode that Bieber shared his Calvin Klein brief ads with him via text. While Wahlberg admits he told Justin he didn't need to see those, he also sticks up for Bieber against the critics saying he's a "nice young man."