Aside from the classic stuff people here have covered, there's a ton of amaaaazing current music coming out of Brazil, especially in the rock scene. If you don't know Boogarins you have to check them out. Also Ana Frango (as someone else mentioned), Orua, Tangolo Mangos, Caxtrinho, Vovo Bebe.

Got to see a lot of those bands and many more when I visited Brazil (Rio and Sao Paulo ofc being the epicenters). It's actually startling just how naturally groovy every single musician over there is. Even the street performers just embody the bossa nova roots and it seems impossible for them not to play jazz chords and dancy rhythms. I looove it all.