Pattie Santos was an American singer-songwriter known for her contributions to the rock and folk genres during the late 1960s and early 1970s. She was a member of the influential San Francisco band It's a Beautiful Day, which emerged from the counterculture movement. Santos is best known for her distinctive voice and emotive lyrics, which helped define the band's sound. Notable works include the tracks "White Bird" and "Hot Summer Day," both featured on It's a Beautiful Day's self-titled debut album released in 1969. The album received critical acclaim and is revered for its blend of rock, psychedelia, and classical elements. Santos' vocal performances contributed significantly to the band's unique sonic identity. Despite the band's relatively short-lived success, Pattie Santos left a lasting impact on the music scene, particularly in the realm of psychedelic rock and folk. Her work has been cited as an influence by various artists and remains a part of the legacy of the San Francisco sound. Santos's artistry is celebrated for its emotional depth and her role in shaping the era's musical landscape.