Which brand ambassador holds the Guinness World Record for 'longest-running celebrity endorsement' with a partnership spanning over 45 years?

World records aren't just about athletic feats or unusual talents - they extend to the marketing world too! Brand ambassadors have set incredible records that have transformed product promotion forever. Test your knowledge about the intersection of world records and brand ambassadorships in this challenging trivia question. Do you know which celebrity partnership broke promotional boundaries?

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Roger Federer with Rolex (since 1978)
Michael Jordan with Nike (since 1984)
William Shatner with Priceline (since 1997)
Diane Ackerman with Blackglama furs (since 1968)