And there’s no sign of girlfriend Jessica Biel

Justin Timberlake has been spotted getting cosy with a mystery brunette in New York.

The singer, 26, is currently dating actress Jessica Biel, 25.

But he appeared to be flirting with the girl at a HBO party in the Tribeca Grand Hotel.

‘Justin was sitting with a bronze-skinned brunette with long brown hair all night at a cocktail table near the dance floor,’ an onlooker tells the New York Post.

‘They were obviously into each other. It was just the two of them and he had no entourage at all.’

A rep for JT refused to comment on his personal life.