Which iconic beverage brand faced massive consumer backlash in 1985 after changing its century-old formula in what's now considered one of the biggest marketing blunders in history?

Some product rebranding efforts go down in marketing history—for all the wrong reasons! These high-profile marketing strategy failures created significant consumer backlash and became case studies in what not to do. Test your knowledge of these famous pop culture marketing missteps that forced companies to quickly reverse course and apologize to their customers.

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New Coke
Crystal Pepsi
Sprite Remix
Mountain Dew Code Red