Sophie Ellis-Bextor has apologised for being "cruel" to Robbie Williams.

A clip of the 'Murder On The Dancefloor' singer talking about fellow pop star Robbie back in 1998 featured in his new self-titled Netflix documentary and Sophie was heard saying: "To me he hasn't got any charm about him, why people embrace him, I find it baffling and it makes me a bit sad really."

However, she deeply regrets the comments and has publicly apologised for being so "rude". In a post on Instagram, she wrote: "In 1998, aged 19, I was very rude about @robbiewilliams and the clip of me being horrid is included in his brilliant Netflix documentary.

"I didn't need to see it again to feel bad. I genuinely have felt crappy about how I spoke for the 25 years since I said it. I thought it was clever to be gobby back then but it wasn't cool then and it's even worse to see it now. Not proud. Not how I'm raising my kids.

"That being said, I wanted to reach out and apologise so a few years back I found an address for Robbie and wrote him a note to say how sorry I was. He was very gracious and forgiving."

Sophie went on to reveal she met up with Robbie and his wife Ayda Field and they have since become friends and worked together on a number of songs - and the singer says the lesson she's learned is to be kind and to "own" your mistakes.

She added: " We ended up meeting last summer and I spent time with him, his amazing wife. @aydafieldwilliams and his gorgeous kids.

"It was lovely to be able to become friends and we have now made some songs together. I suppose the morale of this story is, as ever, be kind. To own your mistakes. And if you're ever cruel, try to make sure it's not filmed as it's bloody brutal to see sharp tongued teenage me after all these years!"

Sophie concluded by adding: "PS - watch the documentary. It's great."