When did American Idol Season 9 Episode 21 air?
American Idol Season 9 Episode 21 aired on March 11, 2010.

It's the moment you've been waiting for! This season's Top 12 are announced tonight as four more semifinalists are eliminated from the competition and sent home after America's vote is revealed. Tune in to see if your favorites earn one of the coveted spots in the Top 12
Direct answers for episode-level questions and details.
American Idol Season 9 Episode 21 aired on March 11, 2010.
This episode runs for approximately 85 minutes.
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