Music Bank celebrated a milestone 600th episode today with a fun and exciting show that was chock full of amazing performances! Besides the usual stages, f(x) made their comeback while there were debuts for A Pink, and X-5. As it was a milestone episode, there were also 7 special stages showcasing the best of K-pop by TVXQ, CNBLUE, Rainbow, 4minute, Kim Tae Woo, Danny Ahn, Son Ho Young, Wheesung, and INFINITE. No winner was announced for this week's K-Chart tonight. After School's comeback for next week was teased. Other performers from tonight include TVXQ, 4minute, CNBLUE, NS Yoon Ji, INFINITE, U-Kiss, Lee Hyun, Rainbow, Mighty Mouth, Brave Girls, Block B, and Go Eun.