Still tall, tan & lovely.
Gilberto's single of Chega de Saudade is generally considered the first true bossa nova record to be released, and Elizete Cardoso (the voice of Euridice in Black Orpheus) recorded the first full album of bossa, Cancao do Amor Demais.
I think she's making fun of Astrud.
Great voice. Ribeiro & Johnny Alf, and later Emilio Santiago have those great baritone crooner voices that are a contrast to Joao Gilberto's sensual whisper.
IIRC, the music in the film is presented in pretty much pure samba style rather than the modified bossa style, then many of the songs became bossa nova staples as interpreted by Joao Gilberto and others, but I'll have to listen to the soundtrack to test my memory.