The pair celebrate a friend's birthday

Harry Styles enjoyed a chilled night out in London last night.

The One Direction singer, 20, was snapped heading to new Marylebone restaurant Chiltern Firehouse for a pal’s birthday celebrations.

After dining, Harry – who’ll leave for 1D‘s Where We Are tour later this month – was seen exiting followed by Jack Whitehall‘s girlfriend Gemma Chan and the comedian.

Harry looked relaxed in a grey jumper and one of his signature bandanas, while actress Gemma, 31, wore a hot blue dress, a green structured jacket and tan boots.

Harry is good friends with both comic Jack, 25, and his other half.

Gemma – who’s been dating Jack since 2011 – shared a funny Instagram snap of herself eating spaghetti with Harry last September.

Other celebs at the Chiltern Firehouse last night included Rita Ora, Noel Gallagher, Stella McCartney and U2‘s Bono.

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Anna Duff