The Serendipity Singers were an American folk group popular during the 1960s. Known for their blend of folk music with pop elements, they gained fame with their energetic performances and harmonious vocals. The group was formed at the University of Colorado and included notable members like Brooks Hatch and Lynne Weintraub. Their biggest hit, "Don't Let the Rain Come Down (Crooked Little Man)", peaked at number 6 on the Billboard Hot 100, solidifying their place in the folk-pop genre.