Which famous celebrity launched a smartphone app called 'Kimoji' in 2015 that crashed the Apple App Store due to overwhelming demand, but later discontinued it after criticism over pricing and functionality?

Many celebrities have tried to leverage their fame by launching their own products or brands. While some have been wildly successful (like Rihanna's Fenty Beauty or George Clooney's Casamigos Tequila), others have faced spectacular failures. This trivia question tests your knowledge about one of the most notorious celebrity product flops that made headlines for all the wrong reasons.

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Kim Kardashian
Taylor Swift
Beyoncé
Lady Gaga