Soul Sirkus is a band that initially featured singer Jeff Scott Soto, guitarist Neal Schon, bassist Marco Mendoza, and drummer Deen Castronovo.

Deen Castronovo quit and was replaced by drummer Virgil Donati.

Neal Schon and Deen Castronovo have also played together in Journey, Bad English, Hardline, and Paul Rodgers's backing band. Deen Castronovo also played on the Neal Schon solo song "Smoke Of The Revolution".