Super Junior 05

Commercially, it peaked at number three on the South Korean monthly MIAK album chart in December 2005, selling 28,536 copies within its first month of release. Since then, the album has sold over 100,000 copies. After achieving critically acclaimed success for their debut performance of the single "Twins (Knock Out)", which was performed on SBS's Popular Songs on November 6, 2005, for the first time, the group was scheduled to release an official single of the song. However, a digital single of "Twins (Knock Out)" was released instead with three more brand new singles available for download on November 11, 2005. The full album, which included all of the singles in the "Twins (Knock Out)" digital release and several other new tracks, was released on December 5, 2005, in South Korea. On February 12, 2006, Super Junior started to promote their second promotional single for the album "Miracle". The performance version of the single differs from the one released in the album as the performance single has an added dance break and vocal bridge in the song.