Severance executive producer Ben Stiller and Milchick star Tramell Tillman surprised fans at Zoolander's screening with a fun crossover.

Ben Stiller was on hand to greet a sold-out crowd attending a "Zoolander" screening at Hollywood Cemetery Saturday night — and he was joined by "Severance" star Tramell Tillman, who showed up with the University of Southern California's marching band in tow.

Ben Stiller joined fans in Los Angeles, California for an outdoor screening of Zoolander on Saturday night, and he gave them a surprise that wasn’t Blue Steel. The screening was hosted by Cinespia at the Hollywood Forever Cemetery,