Yeah Russ firmly believes he belongs in Hollywood right now now now and he's owed that. There's one (and ONLY one) time he's ever considered playing with others and that was for AGT.
He fully expected his slideshow to impress the judges so he posted an ad seeking band members and a singer for his second act which would have been to play his Heidi Klum song and woo her live on-air and presumably go home with her or whatever. It was supposed to be a one-off kind of thing, after which the band would be paid and go home. And since those bigots rejected him, it never happened and that's why we never got a studio Heidi song.
If you think about it, every Russ song has been intended as a one-and-done thing. One is all it takes to flatter a celebrity and then I guess just coast the rest of his life in a mansion with a weekly hooker allowance I suppose.