We love a good ugly Christmas sweater pic and this one is epic. Demi Lovato, Niall Horan, Sam Smith and Olly Murs got the ultimate fourway sweater on and posed for the snap while at the X Factor final.Olly Murs posted the pic on Instagram, with himself and Demi sandwiched between Nialler and Sam, both giving the thumbs up signal. Their grins prove it must have been a fun time getting all of them in there - and we love how Demi's just a little too short, looking like the sweater might swallow her up at any moment!
Olly captioned the pic: "Check out this tasty #festive4way @samsmithworld @ddlovato @NiallOfficial"
Last week, Demi and Sam shared some love on Twitter, with Sam sharing a pic and writing: "So good to finally meet you @ddlovato !! Been a fan since forever xx" and Demi gushing: "This guy is unbelievably sweet and incredibly talented... So good to see you @samsmithworld"