"Celebrate Good Obama" is a song sung by Randy Marsh in the Season Twelve episode, "About Last Night...". The song is a parody of "Celebration", by Kool & the Gang.
Background
All of the Barack Obama supporters are partying in the streets after Obama is declared the winner of the 2008 United States Presidential election. Randy Marsh is drunk and belligerent and he sings his own lyrics to songs playing in the background at the street party. Other songs heard are "Who Let the Dogs Out" by the Baha Men, "Mickey" by Toni Basil, "Desperado" by the Eagles and "Mandy" by Barry Manilow.
Lyrics
Celebrate good Obama come on!
It's Obamobama!