Yellow Matter Custard is a Beatles tribute supergroup consisting of an American rock vocalist who was inducted into what in 2007?
Yellow Matter Custard: Yellow Matter Custard is a Beatles tribute supergroup consisting of Mike Portnoy (Dream Theater, Transatlantic, OSI, Liquid Tension Experiment, Liquid Trio Experiment, Avenged Sevenfold, Flying Colors, Adrenaline Mob, The Winery Dogs, Metal Allegiance), Neal Morse ( ex-Spock's Beard, Transatlantic, Flying Colors, The Neal Morse Band), Paul Gilbert (Racer X, Mr. Big) and Matt Bissonette (Mustard Seeds, Jughead, David Lee Roth, The Squirts, Joe Satriani, Electric Light Orchestra). David Lee Roth:  In 2007, he was inducted into the Rock and Roll Hall of Fame.
i don't know