I'm not a Mudvayne fan (I must be too old to understand the interest in unintelligible grunting and roaring), but they're considered "local boys" to us here in Peoria, IL. As were Richard Pryor, Sam Kinnison, Dan Fogelerg, Gary Richrath (of REO Speedwagon), and "Spanky" McFarland (of the 60's musical group "Spanky & Our Gang", currently part of "The New Momas & The Popas", and my wife's best friend's aunt).
But I digress...