Nicola Roberts wants ''complete ownership'' of her music.

The 32-year-old singer is busy writing new songs for the likes of her former Girls Aloud bandmate Cheryl Tweedy and The Saturdays star Vanessa White,and while she's happy for them to bring in other contributors, she won't accept outside help for her own record.

She told LOOK magazine: ''I'm in the writing process at the moment, I started in July. I've been doing it alone because I want complete ownership.

''For your own project, its important to have full control and not be creatively swayed.

'' For Cheryl, maybe we will bring in other people to contribute and that's fine.

''I do send Vanessa songs and I've suggested a few people I think she should work with.''

Although she's focusing on her own career at the moment, the flame-haired beauty has admitted it would be an absolute dream to pen some hits for Rihanna.

Recently asked who she'd like to write for, she simply said: ''Rihanna.''

Nicola may even follow her Cheryl's footsteps one day and bag a seat on 'The X Factor' judging panel - but only if she can choose which mentors sit beside her.

Asked her dream panel, she said: ''Lauryn Hill, Solange and Cardi B.''

Meanwhile, there's been a lot of speculation over recent months about whether Girls Aloud will reunite next year for the 10-year anniversary of their number one single 'The Promise' and, while Nicola refused to divulge any plans, she has admitted that she'd ''never say never'' to a reunion.

She said when asked about the milestone: ''Who knows - never say never!''