E7
Mah na mah na
   A7     D
Do doo do do do
           E7
Mah na mah na
   A7     D
Doo do do do

           E7
Mah na mah na
   A7      D
Do doo do doo do
    Bm         E7
Do doo do, do doo do
   A7
Do doo do do doo do do
D      G    D
Do do doo  do

Repeat as necessary. No chords are played during Mahna Mahna's solos.

(This chord listing is consistent with the variety show performances of the song as well 
the Muppet Show performance. It is also consistent with the audio only recording.)