Little Mix launch their book Ready to Fly at Bluewater. Picture: Andy Payton

Die-hard fans of X Factor winners Little Mix have been queuing at Bluewater overnight as the group aims to set a world record for their book signing today.

The group are launching their new book, Ready to Fly, at the Greenhithe shopping centre this morning.

They need to top 2,000 signatures to break the Guinness world record.

Little Mix members Perrie, Jesy, Jade and Leigh-Anne are starting their bid at 11am in the Lower Plaza.

Ellise Myers, left, and Libby Butler, both 12, were the first in the queue for the Little Mix book signing at Bluewater. Picture: Andy Payton

Some fans have been camped out at Bluewater since 9pm yesterday, with others arriving early today to be near the front of the queue.

To qualify as a participant in the record attempt, fans need to buy a copy of the book and collect a WHSmith branded wristband on the day of the attempt.

Books can be bought from 7am at a WHSmith book selling point at the entrance to Lower Plaza, off Lower Thames Walk.

Little Mix will be signing copies of their book at Bluewater

The record attempt follows a recent book signing by Olympic diver Tom Daley at Bluewater, which left fans having to be turned away because of huge demand.