Harry Styles is exploring the possibility of buying a vineyard in California.

The 21-year-old singer, who celebrated his birthday last weekend, intends to follow in the footsteps of his friend David Beckham by acquiring his own vineyard.

An insider, who was a guest at Harry's birthday bash, told the Daily Star Sunday newspaper: ''He was talking animatedly about buying a vineyard in the Santa Barbara area where Paul McCartney owns a big property.

''Becks was giving him plenty of advice and it was obvious he was the one who planted the idea in Harry's head.

''Now Harry's turned 21 he cannot only legally drink in bars in America, he is also entitled to own a working winery, which he thinks would be a blast.''

Harry - who stars in One Direction alongside Liam Payne, Zayn Malik, Louis Tomlinson and Niall Horan - has instructed his advisors to find a suitable vineyard.

The source added: ''They aren't going to be in America for quite a while but he has told members of his financial team in LA to try to find suitable small or medium-sized vineyards and send him the details.

''This is a project he's really keen on pursuing solo but he has said that if the other lads in the band want to jump on board he'd be willing to consider that too.

''But I think he has his heart set on having his own brand of upscale plonk, like a lot of other stars these days.

''He reckons it would be classy to have labels saying something like Styles Winery and it's anything but a gimmick in his mind.''