Which celebrity's Instagram post in 2013 became a landmark case for the FTC, leading to new disclosure requirements for all influencers when promoting products?

The world of influencer marketing has transformed how celebrities leverage their fame. Once limited to traditional endorsements and TV commercials, celebrities now command vast digital empires and shape consumer behavior in unprecedented ways. This poll tests your knowledge about a groundbreaking moment in celebrity influencer marketing history that changed how product promotions work in the digital age.

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Kim Kardashian (for promoting Diclegis, a morning sickness medication)
Selena Gomez (for promoting Coca-Cola without disclosure)
Cristiano Ronaldo (for undisclosed endorsements of Nike products)
Justin Bieber (for promoting his fragrance line without proper disclosures)