Mike Portnoy - In Constant Motion - Solos and Duets, Pt. 3 (Video) 1 discussions Mike Portnoy with Jason Bittner (Shadows Fall), Charlie Benante (Anthrax), and Richard Christy (Iced Earth, Howard Stern Show) playing solos and duets in '05 and '06. Check Playlists below for all pa.. Tags: Mike Portnoy Jason Bittner Charlie Benante Richard Christy Constant Motion 2005 2006 Drum Solo Duet Blackdakhma