Chris Martin surprises Gwyneth with DJ

Chris Martin flew his favourite DJ to Italy to perform at Gwyneth Paltrow's 40th birthday.

The extravagant party took place on a boat near Portofino on Saturday.

The Coldplay frontman apparently paid DJ Kayper a healthy sum to play rap records at the bash for his actress wife.

The female spinner – real name Kaajal Bakrania – began playing in British clubs when she was just 15 and is one of the best current scratch artists.

At the boat party, Chris revealed he had booked the DJ as both he and his wife enjoyed listening to her show, which is broadcast on British radio.

Guests at the party included famous friends of the couple such as U2 frontman Bono and British actor Simon Pegg.

Chris Martin provided further entertainment, by serenading his wife with his own version of Take That's Back for Good.

The smitten couple were later spotted sharing a kiss to celebrate the special night.

Gwyneth and Chris have been married since 2003 and have two children, Apple and Moses.