2PM's Taecyeon will perform with his "secret" girlfriend at the 2009 MBC Gayo Daejun. And guess who, that secret girlfriend is none other than Yoona of SNSD. Fan girls, don't go crazy just yet. It's just a performance, or at least that's what we think. The two will put on a special performance with a deep storyline. Let me lay it down for you. Taecyeon and Yoona have been dating secretly, they get in a fight over a small misunderstanding and Yoona starts to dodge Taecyeon's calls. SNSD tries to cheer Yoona up so they escape their dorm to have some fun, but during their night out, they run into 2PM. And of course, they make up after the members help them out and they all live happily ever after. The two groups have been practicing hard, with sleepless nights for this performance and even though I'm really excited to see this performance, I'm kind of jealous. I mean think about all the time SNSD is getting to spend with these boys! Because of last year's amazing performance with the Wonder Girls and Big Bang, people are really looking forward to this one. Hopefully, it will surpass Wonderbang. Also on MBC Gayo Daejun, Park Jin Young and 2PM will have a dance battle. Do you guys remember Rain and JYP's battle last year? I'm sure this one will be even hotter! I can't choose which one I'm more excited for, SBS, KBS or MBC's Gayo Daejun? How about you?