Amy Winehouse Track Leaked

Amy Winehouse's rendition of Lesley Gore's 1963 hit It's My Party has been leaked online.

The British star recorded the tune - her first official new song in four years - for producer Quincy Jones' upcoming tribute album Q: Soul Bossa Nostra.

The original song was produced by Jones. The cover was produced by Winehouse's on/off collaborator Mark Ronson.

The album, which is released next week, also features performances from Mary J. Blige and Usher, among others.

But Jones admits it was a thrill to work with Winehouse. He tells Billboard.com, "She was amazing... We bonded."