U (Super Junior Song) - Super Junior-M's Cover

Super Junior-M's Cover

"U" is the first promotional single for Super Junior-M, the third official sub-unit of Super Junior. The song and music video were released online in China on April 8, 2008, on the day of Super Junior-M's debut. The song, including the rap, is completely performed in Mandarin, which differs from the previous Mandarin version done by Super Junior, where the rap segment is performed in Korean. Although the lyrics convey a similar meaning, the lyrics of the two Mandarin versions are different.

"U" is one of the twelve tracks featured in Super Junior-M's debut studio album, Me, which was released in April 2008 in China and South Korea, and later throughout Asia in May 2008. Super Junior-M's modified version of "U" contains heavier bass instruments, a closer musical approach to hip hop and jazz. The song also has extra music bridges, such as a violin bridge performed by Henry (reminiscent of Super Junior's Don't Don) and an added dance bridge, which makes the song almost a minute longer than the original Korean release. Super Junior member Yesung appears in the song as a stock vocal as his parts are originally from the original Korean version of "U".

The dance choreography for Super Junior-M's "U" is also completely changed from the original. The choreography contains a variety of styles, such as different elements of street dancing and jazz dance to complement the maturity in the song, which slightly differs the image from the main group. The music video features the now f(x) member and leader Victoria, with her face dominating the mirrors, and the Super Junior-M members searching for her presence.