Crooner Tony Bennett has promised to donate the proceeds from his duet with Amy Winehouse to charity.

The talented pair's cover of Body And Soul was the late singer's final studio recording.

It will be released ahead of the Bennett's latest album, Duets II, on September 20.

Bennett, who turns 85 this week, said money from the single would be given to the foundation Winehouse's father is planning to establish in her name.

“What's going to happen is that we're putting that out ahead of the album,” Bennett told NBC's Today Show.

"And it's going to a foundation that her father started to teach all the young children not to take drugs, and all the royalties of the record will go to that."

Bennett added that Winehouse "sang beautfully" on the album.

Duets II also includes vocal contributions from Lady Gaga, Aretha Franklin, Mariah Carey and Michael Buble.