What type of group does Umphrey's McGee and Iron Maiden have in common?
Iron Maiden Iron Maiden are an English heavy metal band formed in Leyton, East London, in 1975 by bassist and primary songwriter Steve Harris. The band's discography has grown to thirty-eight albums, including sixteen studio albums, eleven live albums, four EPs, and seven compilations.
Transatlantic (band) Transatlantic is a multinational progressive rock supergroup consisting of Neal Morse (ex-Spock's Beard), Roine Stolt (The Flower Kings), Pete Trewavas (Marillion) and Mike Portnoy (ex-Dream Theater). They formed in 1999 as a side project to their full-time bands, but disbanded in 2002. They then reunited in 2009.