Not sure about "Birthday" but how about "
Beyond Birthday - Dead Bodies Everywhere [ 04m : 55s YouTube A / Graphic Sequence ] http://funadvice.com/r/14nclmpt6j0
or Beyond Birthday - They're Coming to Take Me Away Ha-Ha [ 03m : 45s YouTube A / Graphic Sequence ] http://funadvice.com/r/14nclmpt8ao
-- Happy Birthday - Majikthise.
"Birthday Dethday" By Dethklok is pretty depressing. it is a metal song about the birthday boy aging and coming closer to death as time goes on. It would make good for an emo birthday celebration.