2AM has yet to make a comeback stage on Music Core. Could the reason be because of their leader Jo Kwon? Jo Kwon has just joined the cast for Family Outing 2, an SBS variety show, which will air in mid-February. Jo Kwon is also currently on We Got Married with partner Brown Eyed Girls' Ga-In as his on-screen wife. This show is on MBC. Supposedly, this put off MBC. Rumors say that their feelings started to show with 2AM's comeback album. 2AM made a comeback performance on Music Bank and Inkigayo but still hasn't made an appearance on MBC's music program Music Core. The tradition is for singers to make a comeback performance on all three shows in the same week. One related source said, "Jo Kwon had a lot of trouble deciding whether or not to join Family Outing 2. I think it might be why 2AM haven't made a comeback performance on Music Core." But people are also saying that this is a completely false rumor. Why? Two members of 2AM are filming an episode of MBC Quiz that Changes the World on February 4th. A MBC entertainment representative said, "Jo Kwon is still a part of We Got Married. The other members have a lot going on as well. Just because they haven't made a comeback performance on Music Core, it doesn't mean 2AM is getting unfair treatment." Technically, there is no reason for MBC to be angry because Family Outing 2 is on Sunday nights and We Got Married is on Saturdays. Most likely you can chalk this up as a ridiculous rumor, but what do you think?