 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.In contrast to the edgy, rock-influenced feel of "Twins (Knock Out)", "Miracle" is a light bubblegum pop love song with light-hearted dance choreography.