A few things are guaranteed to happen every year when the ‘X Factor’ final rolls round.
We get to see some family members in ropey homemade t-shirts, urging people to pick up their phones. Nicole Scherzinger trots off to one of her act’s former workplaces and gets stuck in (we still can’t shake the thought of her in a Greggs tabard, to be honest). And some celebrities get roped in for the annual guest duets.
In the past, some of the biggest names in music have been wheeled out to perform with the ‘X Factor’ finalists, although some unlucky hopefuls have been lumped with whichever artists on the Syco roster happen to be free that weekend.
Here are just 12 of the most memorable celebrity duets from the ‘X Factor’ vaults...