Hi - does anyone know whatever happened to the proposed Stones Duet's album from the last tour. If the Stones are not releasing one, is there a bootleg available of the best duets?

I think it was just either a fan theory and/or an idea the Stones were kicking around...Can you imagine how much they'd lose in royalties (paying each performer/songwriter in some cases)? But a fan-made one would be better than nothing.