The 28-year-old singer finished work on the record in December but said that her record label, RCA, thinks that it will be a bigger success if she waits another six months to release it.
Writing on her Facebook page, she said, 'I recently found out that my album won't be coming out until September... the album has been recorded but I can't release it until then.
'I realise that is a long time but that's the best time to release it apparently so I'm sorry for the wait but I promise you it sounds great!'