Pepsi Challenge

The Pepsi Challenge is an ongoing marketing promotion run by PepsiCo since 1975.

Then the representative reveals the two bottles so the taster can see whether they preferred Coke or Pepsi.

The challenge launched in 1975, as part of the ongoing Cola wars between Pepsi and The Coca-Cola Company.

[5]In his book Blink: The Power of Thinking Without Thinking (2005), author Malcolm Gladwell presents evidence that suggests Pepsi's success over Coca-Cola in the "Pepsi Challenge" is a result of the flawed nature of the "sip test" method.

[12] As part of this year long promotion, Pepsi signed various celebrity ambassadors to advertise their product on their social media accounts under the hashtag #PepsiChallenge.