Just loved his music. So fresh with driving rhythms and melody.
Oh man, that’s sad to hear. His album Brasileiro is a masterpiece of Brazilian music.
OH NO! I love his music and have all of his albums. (Do we still call them that?) His music was the soundtrack of my high school and college days, and I still play it a lot. Some friends and I trekked to Austin in 1966 to see the group in person when it was still “Sergio Mendes and Brasil '66.” The theme of my senior prom was “Corcovado.”
Oh my… these milestones…damn.
Ouch. I would have posted the same video as the OP did; that song is one of my earliest music memories.
Damn. He died from the effects of long COVID. 
I will die on the hill proclaiming that “Mas Que Nada” is the greatest pop song of all time.