The drinks were delivered by Pepsi’s fleet of “Chase Cars,” unveiled earlier this year when the brand took a swipe at Dominos’ exclusive U.S. agreement with Coca-Cola by chasing down pizza delivery drivers and handing out chilled Pepsis to unsuspecting customers.

Ad measurement business System1, which measures emotional response to ads and uses the metric to calculate the potential for long-term growth, deemed it one of Pepsi’s top-performing U.S. ads in the last 24 months.

93% of people recognized the brand by the end of “Undercover Cups,” while the emotional intensity among those viewing was rated higher than the category average.