Which pop star famously switched from endorsing Pepsi to becoming the face of rival Coca-Cola, breaking one of the most unwritten rules in celebrity endorsements?

Celebrity endorsements can make or break a product, creating iconic brand associations that last decades. But do you really know which famous faces have represented your favorite brands? This trivia will test your knowledge of unexpected celebrity endorsement changes that shook up the marketing world. Can you identify which celebrity made a surprising switch between competing brands?

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Beyoncé
Christina Aguilera
Justin Timberlake
Taylor Swift