"Jumper," a rookie group under the tutelage of Shinhwa's Andy made their debut performance on Friday The 13th's KBS Music Bank. They performed their debut single titled "Yes." I gave them a chance, I listened to it for about 2 minutes and after that I said "No." I don't really see them amounting to much of anything but you never know. Maybe some of you tone deaf people will like them, if people listen to the garbage that is Soulja Boy, they'll pretty much listen to anything. Video Credit: achelseni0r