Union J (originally Triple J) are an English boy band consisting of members Josh Cuthbert, JJ Hamblett, Jaymi Hensley, Casey Johnson and previously George Shelley.

They were formed in 2011 and originally a trio, consisting of Cuthbert, Hamblett and Hensley then, Shelley was later added to the group in 2012 through the ninth series of British television music competition The X Factor, in which they finished fourth. They subsequently signed a record deal with Sony Music subsidiary RCA Records, and released their debut single "Carry You" in June 2013.

Their self-titled debut studio album, Union J, followed in October 2013 and peaked at number six on the UK Albums Chart. In April 2014, Union J left RCA and signed with Epic Records.[1] Their second studio album You Got It All – The Album was released in December 2014.

It was preceded by the lead single "Tonight (We Live Forever)" and "You Got It All". In March 2016 Shelley left the band and in May 2016 Casey Johnson was announced as the new member of Union J.