Which of these pop culture sustainability initiatives was launched FIRST, pioneering the trend of celebrity-backed eco-friendly product lines?

Sustainability has become a major focus in retail, with celebrities and pop culture icons leading the charge. Many famous brands have launched innovative eco-friendly initiatives that have transformed the industry while capturing public attention. Test your knowledge about which pop culture sustainability movement came first and sparked a wave of similar initiatives across the retail landscape.

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Pharrell Williams' Bionic Yarn (recycled ocean plastic textile collaboration)
Emma Watson's People Tree sustainable fashion collection
Will.i.am's EKOCYCLE recycled products line with Coca-Cola
Leonardo DiCaprio's Beyond Meat investment and promotion campaign