This is a group of hi-power Beatles fans, you bet!
Yellow Matter Custard is a Beatles tribute supergroup consisting of:
Mike Portnoy (Dream Theater, T***satlantic, OSI, Liquid Tension Experiment, Liquid Trio Experiment, Avenged Sevenfold, Flying Colors, Adrenaline Mob, The Winery Dogs, Metal Allegiance),
Neal Morse ( ex-Spock's Beard, T***satlantic, 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).
Kasim Sulton (Utopia and various Todd Rundgren bands) played bass with the band in 2011, replacing Bissonette.
They take their name from a line in "I Am the Walrus", by the Beatles: "Yellow matter custard, dripping from a dead dog's eye".
Ty Tabor (King's X) was originally approached to play guitar for the group, but was unable due to the King's X touring schedule
https://www.youtube.com/watch?v=U5m8k5UBbVQ