Pepsi Zero Sugar TV Spot, 'Great Acting or Great Taste' Featuring Ben Stiller

Whirling around from his makeup mirror, Ben Stiller -- reprising his role as the iconic model-slash-actor Derek Zoolander -- claims that after a hard day's work, he always asks someone to "pass the Pepsizero, sugar!" Ignoring the correction hollered by someone off-screen, "It's Pepsi Zero-Sugar," he proceeds to take a generous sip and announces that the beverage is really, really ridiculously good-tasting --- or maybe that's just his marvelous acting skills deceiving you. There's only one way to find out!