"It all just came together", OZZY explains of the guest stars. "After I used to be writing "Unusual Man", it really reminded me of an outdated Elton music and I discussed to Sharon, 'I'm questioning if he would sing on it?' We requested and lo and behold, he agreed and sings and performs piano on the music".
Sir Elton plays piano throughout the song and sings the second verse, while Slash contributes two different guitar solos to the melodic track.
Last year Ozzy collaborated with Post Malone on the song Take What You Want - a collaboration that was a catalyst for Ozzy to record the new album.