first, I have no idea of top gear and anything related as we dont have it over here
but usually there's more than a lot of people involved in producing a cd. Even if the promoted artist (that'd be him in this case) has his picture on the cover, he might not have anything to say about song choice, etc.
you dont even have to go as far as compilations. just look at 3 bats live, that album was released completely against Meat's will.
back on topic now!
I've gotta say I dont like that yfrog thing. None of the vids work for me. When there's one that seems particularly interesting I have to go to youtube and look it up there.
Spoils the fun a bit.