Keith Flint in picturesEPAKeith Flint, of The Prodigy, has died aged 49. Flint sang lead vocals on both the band's number one singles, Breathe and Firestarter.ReutersSeen here sticking his tongue out at press photographers during the 1996 MTV Europe Music Awards gala in London, Flint was known for his fluorescent spiked hair.PAThe Prodigy were known for their anti-establishment stance.PABBC Radio 2 DJ Jo Whiley described Flint as an "absolute sweetheart" and an "incredible iconic frontman with a soft centre". Flint is seen here at the V97 concert at Temple Newsham, Leeds, 1997.ReutersIn 2006, The Prodigy appeared on the first day of the Isle of Wight Festival.ReutersFlint grew up in Braintree, Essex, and left school at 15.PAPerforming during the Oxegen Festival in 2008 at Punchestown Racecourse in the Irish Republic.PAFlint was photographed away from his stage persona at the Glastonbury Festival in 2009.PAThe band performed on the main stage during BBC Radio 1's Big Weekend, at Lydiard Park, in Swindon, in 2009.Flint and the band took over Zane Lowe's Radio 1 show in 2009.Flint, Liam Howlett and Maxim performing at T in the Park in 2015AFPLiam Howlett (right) and fellow bandmate Maxim (left) said in a statement: "It is with deepest shock and sadness that we can confirm the death of our brother and best friend Keith Flint - a true pioneer, innovator and legend. He will be forever missed." The three are seen here in Tokyo in 2015.Gonzales Photo / Alamy The band were due to tour the US in May this year.PAFlint's bandmate Liam Howlett said on The Prodigy's official Instagram account he's "shell-shocked... angry, confused and heartbroken".