Gary Barlow has revealed his regrets after going behind the backs of his Take That bandmates to record the lead vocal on a single - which meant Robbie Williams was dumped from one of their biggest early hits.
In a new BBC documentary the star explains he is still haunted by failing to tell the others he had taken the lead on chart-topping track Relight My Fire, and says: "I just did it in a way that upset people."
Gary - who last year rejuvenated his solo career - tells actor James Corden that he stepped in when Robbie, who had been earmarked for the main role, was struggling with the song.
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In the BBC One film When Corden Met Barlow, to be screened next week, he says of Robbie: "H e went in and I got a call from the producer late in the night saying 'we've had him in all night and it's just not working'.
"And so the next day I just thought I'm just gonna do it. In defence of everyone else I should have just said to everyone, I'm going to go in and do a vocal today. There's a few things in that time which, believe me, still come up. I just went in bang and I did it."
Robbie went on to leave the group in the mid-1990s and there was a deep rift between him and Gary for many years until they eventually buried the hatchet after almost a decade and a half, cementing their bond with a joint single and Robbie's eventual return to Take That.
In the film, to be screened on May 5, he also talks about how he had little interest in joining a group but, aside from having to dance, he enjoyed the camaraderie when he attended the audition for manager Nigel Martin Smith.
" The dancing was the bit I was dreading the most. I didn't really want to be in a band if I'm honest, but there was something there, I liked being part of a team that day. I liked being up there all together, all going through the same thing."