These are the chords for the singing part of the song. Sounds good as power
chords but I think it fits with the song better as full chords. The rythm is easy to pick up:

     E  A  D  G  B  e
Ab - X  11 13 13 13 11

Eb - 11 13 13 12 11 11

C# - 9  11 11 10 9  9


Ab                   Eb    C#
Party rock is in the house tonight
Ab                 Eb     C#
Everybody just have a good time
Ab                    Eb        C#
And we gonna make you lose your mind
Ab                 Eb      C#
Everybody just have a good time [X2]