A video of One Direction stars Zayn Malik and Louis Tomlinson sharing a roll up cigarette as they joke about marijuana en route to their concert in Peru last month has emerged online.

Setting the scene, Louis Tomlinson, 22, explains: ‘So here we are, leaving Peru. Joint lit. Happy days!’

The boys are in the back on an SUV headed for their concert at the Estadio Nacional stadium in Lima where they performed in front of a 40,000 strong crowd on April 27.

‘What do you think about that kind of content?’ he asks bandmate Zayn, 21, after he takes a puff.

During the 15-minute video Louis also pokes fun at a suspicious-looking police motorcyclist tailing their vehicle.

‘One nil b***h! Look at this b***h! He’s having a look. He’s thinking, “I’m sure I can smell an illegal substance in there.” And he’s hit the nail on the head.’

‘How is it Zayn?’ Louis asks. ‘Nice,’ Zayn replies.

Liam Payne, Harry Styles and Niall Horan, all 20, are nowhere to be seen.

One Direction has been contacted for comment.