Having been pre-empted last week for the 2011 Mnet 20's Choice Awards, Mnet's "M! Countdown" is back with another episode of great performances and musical treats. Besides the usual stages on the show today, MBLAQ, CSJH, HyunA, Girl's Day, and ZE:A all made their respective comebacks. Elsewhere, Jang Woo Hyuk and Kim Hyun Joong begun follow-up promotions while HITT and Japanese girl group, Domino made their debuts. With regular MCs Tony An and Shin So Yul away on vacation, T-ara's Eunjung and Soyeon were recruited to be special MCs for today. It was a hot battle between HyunA, T-ara and 2PM for the #1 spot on "M! Countdown" today, but in the end, it was T-ara who got the win! Congratulations, ladies! [gallery] === Homme and miss A's comebacks were teased for next week. === Other performers included J, 8eight, Mighty Mouth, Navi, and Sunny Hill.