Blue is an English boy band consisting of members Antony Costa, Duncan James, Lee Ryan and Simon Webbe. The group originally formed in 2000 and has released three studio albums, All Rise, One Love and Guilty that all peaked at number one in the UK alongside releasing 16 singles, over a four-year period. The group also worked alongside artists such as Stevie Wonder, Elton John and Lil' Kim. Blue have sold 15 million records worldwide. In 2004, the group announced a hiatus and released their first compilation album Best of Blue.
The group reunited in 2011 and represented the UK at the Eurovision Song Contest in Germany with the song I Can, coming in 11th place with 100 points. Blue went on to release their fourth studio album, Roulette, and it was later confirmed that they would be joining The Big Reunion, in which six groups from the past reform for a one-off gig, but also led to a tour of the UK and Ireland with the other groups.