Happy Birthday (Clap Clap Song) [00:00.00-1] 作词 : Bernd Schöler/Markus Schürjann/Nico Wagner/Dieter Steffan/M.S. Urmel/Claus Christian Pesch [00:00.00-1] 作曲 : Bernd Schöler/Markus Schürjann/Nico Wagner/Dieter Steffan/M.S. Urmel/Claus Christian Pesch