Jennifer Yvette Holliday (born October 19, 1960) is an American singer and actress. She started her career on Broadway in musicals such as Dreamgirls (1981–83), Your Arms Too Short to Box with God (1980–81) and later became a successful recording artist. She is best known for her debut single, the Dreamgirls number and rhythm-and-blues/pop hit, "And I Am Telling You I'm Not Going", for which she won a Grammy in 1983. She also won a 1982 Tony Award for Dreamgirls.
Holliday landed her first big role on Broadway in 1979 at age 19, the same day she auditioned for the Broadway production of Your Arms Too Short to Box with God. Her performance in that musical earned her a 1981 Drama Desk nomination. Her next role, which she began to act at 21, was the role for which she became best known: the role of Effie Melody White in the Broadway musical Dreamgirls. Holliday originated the role of Effie and remained with the show for nearly four years after its December 20, 1981 opening. Her performance in the role was widely acclaimed, particularly in her iconic performance of the musical number that ends Act I, "And I Am Telling You I'm Not Going."