Mordecai and Rigby are determined to win a happy birthday song contest so they can get a year's supply of cake. false 2026-09-23 01:01:10 7.4 2015 TV-MA tt4428224 5482688 11 Action Adventure Animation I:\Media\Shows\Regular Show (2010) [imdbid-tt1710308]\Season 06\Regular Show (2010) S06E17 Happy Birthday Song Contest-thumb.jpg Regular Show 17 6 2015-02-19 ass ass 0 0 eng progressive False False