On stage, he was rebellion personified, the feral, ferocious frontman who was once deemed too frightening for children.
But since Keith Flint's death on Monday, the memories shared of the man behind the Prodigy persona show a different side to his personality.
They include pictures posted by Chelmsford Central park run group, believed to be the final images of the star taken before his death. The group posted a message saying the singer had recently taken up their weekly 5km runs and had achieved a personal best time of 21m 22s on Saturday, just two days before his death.
Image:Organisers of the run said Flint achieved a personal best time
As stars and fans continue to commemorate one of the most iconic music stars of a generation, here are just a few of the tributes to the Firestarter.
Image:Flint will always be remembered for the Firestarter video
James Blunt
This touching message written by James Blunt was perhaps the most unexpected but lovely tribute to Flint.
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The model and TV presenter was famously in a relationship with Flint from 1999-2000. After this message, she later posted a link to the video for Everlong, by The Foo Fighters.
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Organisers of the weekly run said the Prodigy star was one of their newer runners, adding: "We wished he could have been part of our parkrun community for longer than he was."
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The All Saints star is married to The Prodigy's founder, Liam Howlett. Her sister, Nicole Appleton, also posted the same image and said: "I'm in bits!!....rest in peace Keith you are the best front man and the most wonderful sweetest man."
A post shared by (@natappleton) on
Brian May
The Queen star wrote a lengthy post on Instagram, sharing the story of the Prodigy star's unexpected reaction when they met backstage at a festival.
A post shared by (@brianmayforreal) on
Kasabian
The Leicester band paid tribute, saying Flint helped them while they were working on their second album, Empire.
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The London rapper posted several pictures of Flint, saying he had played his music as a teen "through some of the most pivotal points in my life".
A post shared by (@professorgreen) on
The Chemical Brothers
Ed Simons from dance act The Chemical Brothers shared a post on Twitter, saying Flint had always been "very kind" and "great fun to be around". He also posted this message on Instagram.
A post shared by (@eddyboysimons) on
Emily Eavis
The Glastonbury organiser confirmed The Prodigy had been due to play at this year's festival, and posted this video of Firestarter, performed in 1997, in tribute.
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The electro duo paid tribute to Flint and The Prodigy's "life-changing" music.
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The Hollywood star said he listened to The Prodigy as a teenager.
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Many fans have simply shared their memories of growing up with The Prodigy, and the influence Flint and the band had on their lives.
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