Blue are a British pop-R&B boy band quartet. The members are Antony Costa (born 1981), Duncan James (born 1978), Lee Ryan (born 1983) and Simon Webbe (born 1979). The group formed in London in 2000. They released their first single and album in 2001. They split in 2005 and reformed in 2009. They were the UK entry in the 2011 Eurovision Song Contest.