Caroline Flack will present The Xtra Factor for the 2nd time this year

Caroline Flack and close friend Dawn Porter clearly enjoyed seeing the Spice Girls reunite at the launch of new musical Viva Forever yesterday.

The pair have been joking on Twitter about what their nicknames would have been if they'd been members of the 90s girl group.

'I'd have been Hungry Spice. Or possibly Drunk Spice. Or more than likely Stressing-about-the-deadline Spice,' Tweets Dawn.

Caroline, 32, replies: 'you'd have been funny spice. Gem would have been loud spice. Not sure what I would have been... '

Dawn, 33, has the perfect moniker for her pal, who had a 3-month relationship with One Direction singer Harry Styles, 18.

'You could be You're-too-old-for-me Spice?' she suggests.

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Anna Duff