Little Mix want to prove why they "won" 'The X Factor' when they perform on the live show on Sunday (01.11.15).

Little Mix at KISS Haunted House Party

Little Mix at KISS Haunted House Party

The girl group - including Jade Thirlwall, Perrie Edwards, Jesy Nelson and Leigh-Anne Pinnock - always feel pressure when they return to the show that made them stars and are eager to show the public and the judges they've "improved" since being crowned winners in 2011.

Speaking at the KISS Haunted House Party on Thursday night (29.10.15) Jesy said: "Every time you go back on you kind of feel like you have to show how much you've improved, why you won it, that kind of thing."

Despite the fact the group won show together, they're backing solo acts Lousia Johnson - mentored by Rita Ora - and Simon Cowell's Anton Stephans for 'X Factor' glory this year.

Asked who they'd bet on to win, they added: "We love Louisa and we love Anton. But there's so much talent this year."

Meanwhile, Little Mix - who will release their new album 'Get Weird' on November 6 - are looking further afield for their future collaborations.

Quizzed on who they'd enjoy working with in the future, they said: "Nicki Minaj. We love her. We'd love to collaborate with her."