Factual error: When Carter puts on the Jack LaLanne record, you can see it has eight individual grooves (or rings) around it. However, records only have one continuous groove.
Other mistake: After the airplane explodes, the group on the beach hold up their arms to shield themselves from falling debris. In a couple of frames, Cleveland's mustache loses its color and becomes like his flesh.
Chosen answer: It's a real song called "Elvira". Originally by Dallas Fraizer in '66, however, this version seems to be the Oak Ridge Boys cover version. However, the mega lesbians skip the verse and just sing the chorus after the opening line.
Bishop73