BBC Sounds' When I was 25 podcast presented by Vinny Hurrell, Mutya also told how she 'lost work' after leaving the Sugababes because she was told she couldn't be 'under the same roof' as them.
She said: 'In my eyes I was fat, I was ugly…I just didn't feel good. And on top of that having baby blues with the girls, it didn't make me feel good.
I felt like I had this baby belly. I felt crazy fat. ' The hitmaker said she has since adopted a strict, healthy diet and now feels happier than ever.
She explained: 'For the last two and a half months, I've been on a strict diet making green juices. Now I'm starting to feel the happiest I've been for a very long time. 'Elsewhere, Mutya discussed the Sugababes many line-up changes over the years, which saw her and original members Keisha Buchanan and Siobhan Donaghy replaced by Heidi Range, Amelle Berrabah and Jade Ewan over the years.
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