Instagram/Illenium Music How a UTA agent saw Illenium's potential and masterminded his decade-long rise to a historic Las Vegas Sphere residency. March 16, 2026 AceShowbiz - Guy Oldaker has played a pivotal role in establishing Illenium as a dominant force within the Las Vegas music scene over the past decade. Since 2014, when Oldaker, a UTA agent, identified the bass producer as an ideal artist to break into the challenging Vegas club market, he has steadily crafted a path that culminated in Illenium's groundbreaking residency at the Sphere.