'American Idol' singer storms out when duet partner forgets lyrics, Kelsie Dolin makes Lionel Richie cry - USA TODAY

On "American Idol," the pressures of Hollywood Week can bring out the best in contestants... and also the worst.

On "American Idol," the pressures of Hollywood Week can bring out the best in contestants... and also the worst. That rang true during Sunday's duet episode, which saw some singers punching through … [+4695 chars]

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