Tony Bennett has announced that he will release his duet with Amy Winehouse, her last ever studio recording, as a charity single. Their collaboration on Body and Soul was recorded earlier this year in London and will appear on Bennett's upcoming Duets II album, which is due on September 30th.

Bennett spoke to Rolling Stone about how his concern in working with Winehouse proved unfounded. "Everybody was apprehensive as to how it was going to go, but she was really the best of all the young artists that I met in the current scene in the last 10 or 15 years. She was really singing true jazz. It's just too tragic. I wanted to wanted to talk her out of the drugs, but unfortunately I never had the chance to talk to her"

The proceeds from the Bennett/Winehouse duet will go to the foundation that Winehouse's father has started to keep drugs out of reach of children.

Meanwhile, Coldplay paid tribute to Winehouse by inserting a brief verse from her hit song Rehab into a gig in Australia. Listen below.