Tear Jerker / Ouran: The Vaguely Abridged Series

  • Tamaki tried to celebrate his birthday with a live-action party, apparently involving plushes of all the Hosts, but none of his guests showed up, leaving him to sing "Happy Birthday to Me" while struggling to hold back tears.
http://tvtropes.org/pmwiki/pmwiki.php/TearJerker/OuranTheVaguelyAbridgedSeries