Very simple song, three chords over and over.

G Bb C


Who likes to rock the party
(I like to rock the party)
Who likes to rock the party
(We like to rock the party)

All the ladies at the party feeling naughty shake their booties yeah
Who likes to rock the party
(I like to rock the party)
All the ladies with the babies make their babies shake their booty's yeah!
Who likes to rock the party
(I like to rock the party)

Who likes to rock the party
(I like to rock the party)
Who likes to rock the party
(We like to rock the party)
Who likes to rock the party
(NEW ZEALAND LIKES TO ROCK THE PARTY!)

Throughout the whole song Bret plays G, Bb, and C.

Gx3 Gx2 Bx3 Cx3

This is the longer version of the song shown at the New Zealand stall at the National 
and Migrant Expo in the episode "Bret Gives up the Dream"

A version of this is played slower during the elevator gig in "Murray takes it to the 
Level", but I haven't tabbed that yet.