Blue

Blue are an English R&B group consisting of members Antony Costa, Duncan James, Lee Ryan and Simon Webbe. The band originally formed in 2000, releasing three studio albums, All Rise (2001), One Love (2002) and Guilty (2003) that all peaked at number one in the United Kingdom alongside releasing 16 singles, over a four-year period. The group also worked alongside artists such as Stevie Wonder, Elton John and Lil Kim. In late 2004, the group announced that they would be going on a two-year hiatus and released their first compilation album, Best of Blue on 15 November 2004. In 2005 the group announced that they would pause and go into hiatus to allow some members to develop their solo careers

source: Wikipedia