Keisha Buchanan has admitted she didn't like the music Sugababes were making in her final days with the group.
The 29-year-old Push the Button singer, who was the final founder member to leave the group in 2009, explained that she ''gave up'' as the band were nothing like the one she first joined with original band members - Mutya Buena and Siobhan Donaghy.
Speaking to Grazia magazine, Keisha said: ''We had a lot of success when Mutya was in the group, but I sensed she wasn't always happy so I couldn't really enjoy that period.
''There were a few tracks I liked, but it felt like we'd lost the essence of what we were as a group. By the end, I was the only one fighting for creative control and eventually I gave up.''
The original group reformed in 2010 as Mutya Keisha Siobhan - aka MKS - and are hopeful they won't have the same problems as they did in their early day.
Mutya added: ''It was [because] we were 15-, 16-years-old and didn't communicate.
''When you have adults around you who stir things up by taking one girl aside and telling her one thing and another something else, it creates tension.''