And that one man is Danny Fong.  Fong used only his voice to record the Pokémon theme song you know and love.  With a total of 58 different audio tracks & 16 video tracks Fong used his voice alone to bring together the drums (hi-hat, toms, kick drum, snare, cymbals), rhythm guitar, bass, piano, and vocals.  My only objection?  This kid owns a frightening amount of V-neck shirts.

[Thanks, @andrewseely]