Marilyn McCoo and Billy Davis Jr. are American singers and musicians who gained fame as members of the vocal group, The 5th Dimension. Known for their blend of pop, R&B, soul, and jazz, their harmonious style and distinctive vocal interplay have been influential in the music industry. They are most renowned for their Grammy-winning hit "You Don't Have to Be a Star (To Be in My Show)". As a duo, they continue to build on their legacy, showcasing their unique blend of genres and vocal versatility.