What's that song maybe it's from a musical?

Whats the song (maybe 60's or 70's ish?) do do do doo do...?

• Sorry I don't have more info on the lyrics! The chorus goes "do do do doo do; doo do do do do do" to a tune of c c c d d; a f f f g g (the a is high and its the longest note of the chorus). Its a happy sounding song with male vocals. Its been stuck in my head for weeks! It is (was) pretty popular, I've heard it many times. It sounds like its an oldie, maybe 60s or 70s

• Answer:

  I know the song your talking about but can't think of the name..Now i'll be up all night thinking..It's like Root dooty doo,root toot doo deed do - Maybe Van Morrison.. edit : It does sound like Lou Reed,especially that high long note,recall any sax ?