Jay-Z and Beyonce could be teaming up for a duet this summer.

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The married couple are rumoured to appear on stage together at the O2 Wireless Festival in London, just one week after the rapper controversially headlines Glastonbury.

A source said: “Jay-Z is planning a spectacle to end of spectacles.

“He knows all eyes will be on him when he headlines Glastonbury but he’s actually planning on whipping up something special for Wireless too.

“He’s been talking to Beyonce about getting her on stage.”

The hip-hop star, who teamed up with Beyonce for her worldwide smash hit Crazy In Love and 03 Bonnie and Clyde, is also planning to fly in a huge string section and orchestra for the Hyde Park concert.

Meanwhile, the 38-year-old rapper was seen lending his support to friend Chris Martin at Coldplay’s show at the BBC studios in London this week.

Chris has come under fire in recent weeks after walking out on two interviews, while Coldplay’s new album Viva La Diva, Or Death and All His Friends has received mixed reviews despite topping the UK album chart.

Since being announced as a Glastonbury headliner, Jay-Z has been criticised by rock royalty, including Oasis star Noel Gallagher, who insists a hip-hop act should not top the bill at the event.