"Invisible" is a song by Irish boy band D-Side, released as the third single from their first studio album, Stronger Together (2003). The song was written and produced by Desmond Child, Andreas Carlsson, and Chris Braide. Released on 14 July 2003, the song became a top-10 hit in Ireland and the United Kingdom, peaking at number five in the former country and number seven in the latter. The same year, American Idol second two runner-up Clay Aiken covered the song and reached number 37 on the US Billboard Hot 100 with his rendition. The song has been frequently targeted by music critics for its unsettling lyrical content, with several calling the track a "stalkers' anthem".

John Charles Barrett, known professionally as Desmond Child, is an American songwriter and producer. He was inducted into the Songwriters Hall of Fame in 2008. He has been nominated for four Grammy Awards, a Primetime Emmy Award, and has won a Latin Grammy Award.