The 30-year-old Girls Aloud star has confirmed that her first album will be released in 2013, reported Contactmusic. "I've always been a bit edgy, but I know I've got to come back with something strong.
"I've been songwriting and hopefully what I bring out will stick in people's minds. I can't say much, but it's not what people will expect. I think they might be shocked," she said.
Harding said performing without her bandmates Cheryl Cole, Nicola Roberts, Kimberly Walsh and Nadine Coyle will cause a great anxiety. "It's nerve-wracking.
It's a scary idea to be on stage on your own too, as I'm so used to having the others with me, but I just need to be confident. I'm confident in my new music and what I'm doing now. I'm really enjoying having fun with fashion at the moment too."