The Naked Jungle presenter, better known as 'Cheggers', told the Daily Star Sunday that they were children at stage school when the Genesis singer penned the tune.
The 54-year-old revealed: "I was in a school play and I was singing the first song that Phil Collins ever wrote. Yeah, true story.
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"I went to the Barbara Speake Stage School and his mother ran the school. Phil was there too and he wrote a song and I sang it.
"So the first character or part that I had in the show was singing a Phil Collins number, the first song that he ever wrote and I've still got a copy of it!"
Chegwin returns to UK TV screens later this year in Ricky Gervais's Life's Too Short, in which he makes a cameo alongside the sitcom's star Warwick Davis.
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Watch Warwick Davis talk about 'Cheggers' with Digital Spy below:
