The 33-year-old actor, who stripped off along with Jon Cryer and Angus Jones for the Two And A Half Men advert, said it has proved so popular that he has decided to give up clothes for good.
Appearing on the opening episode of The Ellen DeGeneres Show, due to air September 12 that is exactly what he did.
'It's getting a lot of attention. So I just figured I'm going to do everything nude from now on,' he told DeGeneres before dropping his robe.
'I don't know if that's a good idea. Really?' protested Ellen.
Kutcher insisted, 'Yeah. Whatever I'm doing I'm just going to do it nude. Let's do this.' However, in the interests of public decency his bits stay pixilated, People magazine reported.