KDTU has electrified audiences around the world for over twenty-five years. They have played the fields of Naeba in Japan at the infamous Fuji Rock Festival. Also, the hallowed stage of Madison Square Garden, joining the Dave Matthews Band and The Godfather of Soul, James Brown. Further, he performed as Sexual Chocolate (Karl was in the original band in the movie Coming To America and its sequel) at the Outside Lands Music festival in San Francisco. And, they were the first late night act at the inaugural Bonnaroo festival. KDTU has been a dominating force in music for nearly three decades.

All-night, sold-out concerts during Jazzfest in New Orleans have featured sit-ins by legends like Lenny Kravitz and Steve Winwood. (Karl has recorded and toured with both!) Also, avant-garde luminaries like Marc Ribot and Boyfriend. Rolling Stones bandmates Chuck Leavell and Bernard Fowler have also joined onstage and on record. There, Karl replaced the great Bobby Keys as saxophonist in 2014. Denson has also worked with Lukas Nelson, John Oates, Michael Franti, Warren Haynes, Ivan Neville, and Anders Osborne. Additionally, Big Daddy Kane, Roy Hargrove, Maceo Parker, Fred Wesley, Joshua Redman, Marcus King, and Bernie Worrell, among others.

Very few concertgoers have been untouched by the Tiny Universe live. They toured the country with the Allman Brothers, My Morning Jacket, D’Angelo, The Roots, and Public Enemy. Also, Bob Weir of The Grateful Dead, Parliament Funkadelic, Slightly Stoopid, and Widespread Panic. In addition to KDTU, Karl Denson aka “Diesel” is a founding member of the seminal groove act The Greyboy Allstars.