Nadine Coyle is holding up Girls Aloud from reuniting for a new album - because she is launching her solo career in the US.

Bandmate Kimberley Walsh is presently trying to get the group - which also includes Cheryl Cole, Sarah Harding and Nicola Roberts - back together to start work on a new, more mature LP, but Nadine is in Los Angeles working on her own music.

Kimberley, 28, said: "I miss the girls. The plan is... Well, basically, Nadine needs to come over from Los Angeles. We need to chat and book it in because there are five people's diaries to work around, rather than just one."

Nadine has been working with Robbie Williams' former songwriting partner Guy Chambers on her record, as well as writing songs for the album herself.

Nadine recently said: "I've been writing my own songs and I'm hoping to release it in the spring.

"I wrote nearly all the songs myself. It's quite embarrassing when you start songwriting because you are opening yourself up, I think people are going to like the album though."

Kimberley also played down rumours Girls Aloud - who are currently on a year hiatus - could split permanently now Nadine and Cheryl have started solo careers, Sarah has become an actress and Nicola has launched a make-up range.

She added to the Metro newspaper: "We signed up for three albums before we took the break. We always have to take it up a level and bring out new and exciting stuff. The things we'll be singing about will be quite different this time around."