Vinnie Dombroski is an American musician, best known as the lead vocalist and main songwriter for the rock band Sponge. He also fronted the short-lived supergroup Spys4Darwin, and has been a member of several Detroit-based bands throughout his career. Dombroski is also the lead vocalist and co-founder of the Lucid alongside bassist David Ellefson (ex-Megadeth), guitarist Drew Fortier (ex-Bang Tango), and drummer Mike Heller (ex-Fear Factory).