Answer
Cass Elliot, known for her participation in the renowned musical group "The Mamas & the Papas," made significant contributions to the world of rock music. Primarily known as a rock artist, she showcased her distinct vocal style in hit songs like "California Dreamin'" and "Monday, Monday," which defined the genre's sound during the 1960s. Her powerful voice and soulful interpretations added a unique dimension to rock music's diverse landscape.