What is the name of song at end American Dad Episode Roy Rogers McFeely that Roger sings?

The song Roger sings at the end of the American Dad episode "Roy Rogers McFeely" is "I'm So Happy to Be Gay".

It's a parody of the song "I'm So Happy To Be Me" by the band *The Muppets*, and Roger's rendition is a humorous take on the character's flamboyantly gay persona.