Hi Hi Puffy AmiYumi

Hi Hi Puffy AmiYumi is an American animated fantasy-comedy television series created by Sam Register for Cartoon Network. It premiered on November 19, 2004 and ended its run on June 27, 2006, with a total of three seasons and thirty-four episodes, leaving five episodes unaired. The show is loosely based on the real life J-Rock band of the same name, as it follows they're adventures as rock stars.

Opera Yumi (Season 1, Episode 6)
When Yumi's old opera teacher comes back, she hypnotizes Yumi with a whistle in order to get her back into the opera business.

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