Olly Murs will open for One Direction on their North American tour

Olly Murs has a plan of action to protect One Direction if they get mobbed by female fans on their first headline North American tour.

Olly, 27, says he'll look after the band when he joins them as a special guest at their shows in the US and Canada from 29 May.

'I'm looking forward to being their bodyguard if they need me to,' says Olly.

'[The girls aren't] a problem but it depends how old they are.

'Unfortunately, I know the boys are a lot younger than me so...'

Despite the age gap between Olly and Louis Tomlinson, 20, Zayn Malik, 19, plus Liam Payne, Niall Horan and Harry Styles, all 18, the singer is looking forward to going on the road with 1D.

'It's going to be a laugh,' says Olly.

'Six lads on a nice holiday through America singing a few songs. I'm excited.'

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Anna Duff