Diet Coke's Nutrisweet meets former welterweight boxing champ "Sugar" Ray Leonard, and they both win, in this spot by McCann-Erickson New York.

This celebrity-driven Super Bowl spot was accompanied by another Diet Coke ad in Super Bowl XXIV, the celebrity duet "Just One Reason."

Diet Coke came back to the Super Bowl in 1991 but saw its plans upended by the war in the Persian Gulf ("Crack the Code").

BRAND: Diet Coke

YEAR: 1990

AGENCY: McCann-Erickson

SUPERBOWL: XXIV