BRITS 2013: Harry Styles has all-night party at Nick Grimshaw's house, goes to work with him on Radio 1

One Direction star Harry Styles made sure he celebrated the band's BRIT Award in style by going on an ALL NIGHT party session.

Harry Styles left Grimmy's house at 6am this morning after partying all night. Copyright [Splash]

The 19-year-old was seen leaving leaving BFF Nick Grimshaw's house at 6am this morning, as he headed to work with him after the bender.

Hazza looked pretty worse for wear as he left Grimmy's pad with him first thing, dressed in the same clothes he had on at the ceremony just hours before.

Yes we recognize that spotty shirt Haz!

Grimmy posted on his Twitter page: "Look who's here" alongside a snap of the 1D star in the Radio 1 studio with him for the Breakfast Show.

Harry Styles joined Grimmy on his Radio 1 show this morning.

A worse-for-wear Harry took listeners' questions live on air as he and Nick laughed their way through their hangovers.

Harry was asked what his favourite part of the BRITs 2013 was, and he said he loved it when the band performed their Comic Relief song 'One Way Or Another'.

But he was pretty coy about any other antics he and the boys had got up to during and after the show *raises eyebrow*.

Grimmy and Harry Styles partied with the rest of One Direction plus Simon Cowell at the official Sony party at The Arts Club on Dover Street in London's Soho.

Also hanging out there were American stars Justin Timberlake and Jessica Biel - following JT's performance at the ceremony earlier.

Fellow US star Demi Lovato was also at the Sony bash, and made her way out of the back entrance with her crutches, following her broken leg.

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