In a new interview with Marcelo Vieira of the Igor Miranda YouTube channel, guitarist Mick Mars explained why former Motley Crue vocalist, John Corabi, is not singing on his solo album.

Mars said:

 “(John) was doing… I really wanted him to sing on it, but I know he was busy with Dead Daisies and doing these other things. I don’t know… He was kind of, like, not adamant, but kind of unsure. 

”John is a good friend of mine, and we both kind of decided that (we should) not repeat the ’94 album. Yeah, that kind of thing. I think we made the right choice to have him not to sing, even though he’s got an incredible voice.”