Lee Hyun, NS Yoonji，KOYOTE，A Pink，As One，Dynamic Duo，Electro Boyz，F1RST，MBLAQ，Monday Kiz，Nine Muses，T-ara and Teen Top
120112 M! Countdown performers list!
Lee Hyun, NS Yoonji，KOYOTE，A Pink，As One，Dynamic Duo，Electro Boyz，F1RST，MBLAQ，Monday Kiz，Nine Muses，T-ara and Teen Top