La Roux's Elly Jackson separated from bandmate Ben Langmaid because touring with him made her feel like a "different person".
The singer is now the sole permanent member of the group after parting ways with her songwriting partner and producer during the recording of new album 'Trouble in Paradise'.
She claims problems emerged between the pair because she spent so long touring their self-titled debut album in America and returned with a different set of influences.
She told NME magazine: "It was always going to be difficult because we'd had a long time away from each other when I was on tour.
"We weren't really that connected and I'd realised what kind of performer I wanted to be onstage, which led to me finding my first record restricting. I came back home and I felt like a different person."
Although the pair initially returned to the recording studio together, they found themselves clashing regularly over their output.
Elly recalled: "I came to him with some rare disco references and he made it very clear that he didn't like them. There wasn't a great deal of understanding.
"Sometimes I thought we were on the same level, but then from the production that would come to light, I didn't feel that we were. I wasn't happy with the way some of the demos were sounding, or how they felt.
"On the album, there are maybe two songs that have similar production styles to the way I started them with Ben, but they were essentially demo tracks and I felt they needed a lot of subsequent work."
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