Looking for a song title

Because I do not speak Portuguese, I am unable to provide any more data than the following. I only recently heard this song on a MYOL-type station, and they said it was some type of samba by Sergio Mendes and Brasil 66.

At any rate, the chorus has the hook: "BAH, BAH, BAH, BAH".

Thanks a million to one and all.

BigDonB

Dear bigdonb, in case you're still interested: you might have meant this song: Mas Que Nada, especially those two covers containing Sergio Mendes (where the first "o's" from "obá obá obá" are not so easy to hear).