What makes Look to the Rainbow by Astrud Gilberto notable?

'Look to the Rainbow' is notable for its critical acclaim and contribution to the popularization of bossa nova outside Brazil. The album features several tracks that became standards in jazz repertoire, further bridging the gap between Brazilian music and mainstream pop culture during the 1960s. Released in 1966, 'Look to the Rainbow' marked Astrud Gilberto's third studio album, following her breakthrough collaboration on 'Getz/Gilberto' in 1964. By this time, she had established herself as a significant voice in bossa nova and was beginning to explore more diverse musical landscapes, solidifying her reputation globally.