The Before He Cheats hitmaker will showcase new looks from her Calia fitness line at the prestigious style event, which kicks off on 10 September (15).

The athletic wear collection will be shown at pop-up shop The HQ, where attendees will be able to purchase her clothes.

The singer tells, "I've been a spectator at Fashion Week a few times, but this is the first time I'll be involved."

She continues, "I sit in the audience and say, 'Oh, I love that', but then realise, 'Oh, I have to wait'. With this, people can see what we're working on right now and buy it immediately. I love that and I hope they will, too."