Explorers Club is a progressive rock supergroup headed by the Gardner brothers of Magellan featuring, among others, James LaBrie, John Petrucci and Derek Sherinian of Dream Theater, Billy Sheehan, and Steve Howe. Their first album, Age of Impact was released in 1998 and Raising the Mammoth was released in 2002. For the unrelated Swedish music movement, see progg. ... SuperGroup is a reality show on the channel VH1. ... Magellan is a progressive rock/metal band from the United States formed by the two brothers Trent Gardner and Wayne Gardner in 1985. ... Lord Kevin James LaBrie (born May 5, 1963) is a Canadian vocalist who is best known for being the lead singer in progressive metal band Dream Theater. ... John Petrucci (born July 12, 1967) is an American guitarist best known as a founding member of the progressive metal group Dream Theater. ... Derek Sherinian is a ‎rock and fusion keyboardist based in Los Angeles, California. ... Billy Sheehan Billy Sheehan (born March 19, 1953 in Buffalo, New York,) is a U.S. bass guitarist known for his work with Talas, Steve Vai, David Lee Roth, Mr. ... Yes guitarist Steve Howe in 2004 Stephen James Howe (b. ... Age of Impact, released in 1998, is Explorers Clubs first studio album. ...