Guest Star: Yoshi Barrigas

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  The Earworm Reverberation
  Season 9, Episode 10 - Aired December 10, 2015

  Sheldon has a revelation when he realizes why a song was stuck in his head. Also, Amy invites Dave over for dinner despite their previous awkward date, and Howard and Raj become obsessed with a fan of their band, "Footprints on the Moon".

  Appeared as Trent