Cheryl fears MAJOR wardrobe malfunction in The Greatest Dancer after a blunder

As the old showbiz saying goes, never work with children or animals – or even with stray clothes.

This is something that Cheryl will keep in mind at tonight's very first concert, The Greatest Dancer, as the new rules predict that a wardrobe malfunction is now much more likely.

Cheryl and her other judge, Oti Mabuse, are worried that the live format of the show will not give them time to change their costume. If something is wrong at night, it will be up to them to save their own movie. blush while they dance.

"Cheryl and Oti want to have a bady and glam look, but skipping a physical routine has caused them last-minute problems," a source told Star.

"They're busy with the team's stylists looking for something that will not result in Janet Jackson's Super Bowl style gaffes."

Janet's nipplegate flash was the first costume joke ever described as a wardrobe malfunction after Justin Timberlake exposed his chest during their 2004 Super Bowl half-time show.

Janet was forced to apologize to the nation after Justin snatched a piece of PVC leather on her corset to reveal her nipple jewelery.

Let's hope Cheryl will not do the same thing tomorrow morning.

Tonight 's live show will see nine numbers unfold one – on – one with their dance routines prepared – and one of them will be sent home when the public votes on it.

But the three dance captains – Cheryl, Oti and Matthew Morrison – will first have to show their own movements in a carefully choreographed group performance.

This comes after the disastrous appearance of Cheryl in The X Factor last December, who had seen her pilloried for her shy gestures as she staged her pop back with the single Love Made Me Do It .

Cheryl wriggled on the floor, fumbling dancer and licking herself into the "bady" routine, which even saw the jaw of X Factor's head, Simon Cowell.

* The greatest dancer starts tonight at 7:30 pm on BBC1