The Chorus and verse are nearly identical with the exception of the Em on the third line.

C (x32010@1)                          GThere's (320003@1)a party in my pants and you're invited
                                DA (xx0232@1)big fiesta in my trousers I'm excited
       G (320003@1)                             C (x32010@1)I'm so happy my little cupcake I can't hide it
          G (320003@1)         D (xx0232@1)              GThere's (320003@1)a party in my pants and you're invited

G (320003@1)                                 CI'm (x32010@1)sick and tired of sad and broke and busted
    G (320003@1)                         DI'm (xx0232@1)takin' leave of my troubles today
Em (022000@1)                                  CHide (x32010@1)everything you don't want to get shattered
      G (320003@1)                 D (xx0232@1)            GWoah, (320003@1)Tonight we're gonna roll the rules away.

Chorus/intro repeat

If you're tired of knock knock jokes and conversation

Crank up the radio and kill the light

Let's get on this gay love celebration

We gonna party in my britches tonight

Chorus/intro repeat