Amy Winehouse parties with ex

Troubled Amy Winehouse reunited with her ex-boyfriend Tyler James once again last night -- for an all night session of partying.

The 'Rehab' star, 24, was seen leaving her London home with Tyler, who has been helping her stay on the straight and narrow, before heading to Bungalow 8 at St Martins Lane Hotel.

The singer met up with pals Mark Ronson, Kelly Osbourne and Kimberly Stewart. Newly single music supremo Mark was later spotted leaving the hotspot with another mystery blonde.

Amy has known singer Tyler for over 10 years and, as well as dating for a brief period, they have toured together with their respective bands.

Tyler's look is a world away from the messy appearance of her scabby hubby, Blake Fielder-Civil - who's currently locked up in London's Pentonville prison on assault and conspiracy charges.