Other mistake: Right at the start when you get an aerial shot of the bowling alley, there is one that gets a strike. The machine sweeps them away, but the pins still remain. (00:00:05)
Continuity mistake: At the start we can see Quagmire and Mort sat at the bowling lane and Peter is nowhere to be seen. When the shot changes, Peter is now stood ready to bowl. (00:00:35)
Continuity mistake: At the bowling alley just as Mort is about to bowl a perfect game, the bowling ball in Joe's lap and the beer in his hand disappear. (00:01:45)
Continuity mistake: When the green car is hit by the train in the chicken fight, the driver vanishes from the car instantly. (00:04:30)
Continuity mistake: During the chicken fight, when the cruise ship crashes into the airport, the man directing the planes disappears a split second before he gets run over. (00:05:50)
Continuity mistake: When Tom Tucker is reporting about Peter saving Horace, his angle in relation to the bar changes. (00:19:00)
Continuity mistake: During the Star Wars rip-off at the end, just before Peter climbs the Town Hall stairs, the people on the sidelines change. (00:19:45)
Continuity mistake: When Peter and the chicken are fighting, everything in the road vanishes instantly.
Continuity mistake: Peter falls from the roof of the Clam landing on Joan Cusack. He puts her body in a mailbox that appears just for this scene.
Other mistake: Lois goes to the bathroom at the bowling alley. There's only one way to the bathroom yet Quagmire beats her there and has time to hide in the stall. There's no way he could've done that considering he went after Lois.
Continuity mistake: When Peter is about to walk into the Drunken Clam, his seeing-eye dog refuses to go inside, so he puts the leash on a homeless man, thinking it was a fire hydrant. We actually see a fire hydrant in front of the homeless man, but then when Peter ties the dog up, it's gone.
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