During EXO's corner on the recent episode of KBS 2TV's 'Music Bank - Stardust' in which they talked about their "Call Me Baby" MV and choreography points, Xiumin made a sweet comment about their SM seniors, TVXQ.

He said, "Since my training period, I was a fan of TVXQ. There would be no EXO without TVXQ . . . The song I like the most is 'Rising Sun.'"

The members said Xiumin was a successful 'Cassiopeia (TVXQ fan),' saying, "There are always TVXQ songs on his mp3 player."  Xiumin had even taken part in TVXQ's recent exclusive concert in Japan!

Now that's a true fan boy.