Party at 9

"Party at my place at 9,
be there, or don't,
I don't really care."

"Party at my friend's place at 9,
be there, or don't,
I don't really care."

"Party at his place at 9,
be there, or don't,
I don't really care."

"Party at some place at 9,
be there, or don't,
I don't really care."

"There was a party at Shane's place at 9,
were you there or not?
A lot of people care."

"There was a party at that guy's place at 9,
were you there or not?
A lot of people care."

"There was a party at my enemy's house at 9.
I was there.
Why exactly does everyone care?"

"Why don't you care?"