Blue were an English pop boy band consisting of four members: Lee Ryan, Duncan James, Antony Costa, and Simon Webbe. During their 4 year success in the music scene, the band sold over 7 million records. They broke up in 2005. "If You Come Back" is a song by Blue, released as the third single from their debut album All Rise. It was only successful in their home of the UK. The song was co-written by Lee Brennan(ex "911" frontman) and Howard Donald (Take That member)Blue were an English pop boy band consisting of four members: Lee Ryan, Duncan James, Antony Costa, and Simon Webbe. During their 4 year success in the music scene, the band sold over 7 million records. They broke up in 2005."If You Come Back" is a song by Blue, released as the third single from their debut album All Rise. It was only successful in their home of the UK. The song was co-written by Lee Brennan(ex "911" frontman) and Howard Donald (Take That member)Blue were an English pop boy band consisting of four members: Lee Ryan, Duncan James, Antony Costa, and Simon Webbe. During their 4 year success in the music scene, the band sold over 7 million records. They broke up in 2005."If You.