Heller became famous in the 1960s and '70s, importing Elton John and Pink Floyd for their first major American tours, and representing Journey, Marvin Gaye, Van Morrison, War, Eric Burdon, Crosby Stills and Nash, Ike & Tina Turner, Creedence Clearwater Revival, Otis Redding, The Who, REO Speedwagon, Black Sabbath, Humble Pie, Styx, The Grass Roots and The Standells, among many others.