 Most notably, the album features the Bassinvaders' rendition of Helloween's popular song "Eagle Fly Free".Also, the album features a wide range of guest bassists who play the bass solos and add to the variety of the album.Those include Billy Sheehan (Mr. Big, Steve Vai), Rudy Sarzo (Dio, Quiet Riot), Jan S. Eckert (Masterplan), Tobias Exxel (Edguy), Marco Mendoza (Blue Murder, Whitesnake), Nibbs Carter (Saxon) and more.