Which celebrity's $10 million endorsement deal with BlackBerry in 2013 became infamous when they were caught tweeting from an iPhone just weeks after being named 'Creative Director'?

Celebrity endorsements can make or break a product launch. While some partnerships like Michael Jordan and Nike become legendary, others crash and burn spectacularly. In 2013, one famous partnership resulted in a massive $10 million deal that quickly became one of the most notorious product advertising failures in recent history. Test your knowledge of this expensive marketing misstep that had everyone talking—for all the wrong reasons.

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Alicia Keys
Justin Bieber
Lady Gaga
Will.i.am