[7] Soussan was a member of the supergroup Big Noize along with singer Joe Lynn Turner, guitarist Carlos Cavazo, and drummer Vinny Appice.

[8] The group has since included keyboardists Gary Corbett and Teddy Andreadis,[9] drummer Simon Wright,[10] guitarist George Lynch and singer Sebastian Bach.

[11] Soussan has had roles in several films; as part of the band Black Plague in The Adventures of Ford Fairlane,[2] as himself in Rumble: The Indians Who Rocked the World[12] and The Life Blood and Rhythm of Randy Castillo.

[14] In 2008, Soussan became Chairman of the Advocacy committee and in 2011 he was elected Vice President of the Grammys in the Los Angeles chapter, a position he held for two full terms.

[15] After organizing the MusicCares grass roots "Giving 2010" benefit funding event funding he performed on 3 May 2010,[16] For this Soussan formed the cover band "Carnival of Dogs" with Matt Sorum (Velvet Revolver, Camp Freddy, formerly of Guns N' Roses and The Cult), Franky Perez (Solo, Scars on Broadway, DKFXP) and Tracii Guns (L.A.