Spotted: Marvin and Rochelle have a bust up at Wireless Festival

Saturdays singer Rochelle Wiseman and her JLS fiance, Marvin Humes, shocked onlookers at London’s Wireless Festival after becoming embroiled in a heated argument while watching rapper Drake perform.

A source told the Daily Mirror: ‘Rochelle became upset with Marvin during Drake’s set as they all watched the performance from the VIP platform.

‘She was telling a friend that she was annoyed with him, as he tried to calm her down. She then asked Frankie Sandford’s boyfriend, Wayne Bridge, for his take on events.’

It seems things then later escalated, with the source adding: ‘Later, they went back to the Barclaycard Unwind Lounge and Rochelle was shouting at him: “You didn’t pick me up!”

‘By this time they were both well watered. They’d been drinking since about 2pm and it was now gone 10pm.

‘A friend intervened and suggested that they have it out in private because everybody was looking.’

It looks as though the pair quickly kissed and made up, with Rochelle and Marvin looking as loved up as ever while cheering on Andy Murray during the Wimbledon final yesterday.

The source confirmed the wedding was still very much on, saying: ‘It wasn’t a relationship-changing row, they just had a little disagreement. The wedding’s definitely on.’

Just a fortnight ago Marvin admitted he couldn’t wait to get Rochelle down the aisle, telling Hello! magazine: ‘I guess we’ve been wishing the weeks away because we are just so excited and so are our families and friends.’

Admitting the wedding would be ’emotional’, he added: ‘For all I know, I could end up a blubbering mess. But one thing I do know is that Rochelle will look incredible. She will be the most beautiful bride.’

The pair are set to marry this summer at Blenheim Palace in front of around 400 guests, with The Saturdays, JLS and X Factor judge Tulisa expected to attend.