Hi. This tune is so appropriate in so many situations, I think it's the epitome' of a truly universal song. Not to muddy the waters here, but this is how I play it...to each his own I guess, but the minor chords seem to add depth, in my humble opinion. pbb

               C
May God bless and keep you always
            Em            
May your wishes all come true
                  Dm
May you always do for others
             F                                  C
And let others do for you
             C
May you build a ladder to the stars
    Em            
And climb on every rung
                      Am-G               C
And may you sta-ay forever young
                    G                      Am
Forever young forever young                                         
                     C---G               C
May you sta-ay forever young