Nikki Blonsky (born November 9, 1988) is an American actress and singer. She starred as the lead character Tracy Turnblad in Hairspray, a 2007 screen adaptation of the stage musical.
Blonsky was born Nicole Margaret Blonsky in Great Neck, New York to Karen (née Smeja), a school aide, and Carl Blonsky, a municipal worker for the village water pollution control district. She has a brother, Joey. Blonsky worked at Cold Stone Creamery before starting her work on Hairspray. Blonsky graduated from Great Neck Village School in June 2006, having transferred into the school from Great Neck North High School in her sophomore year. Blonsky's father is Jewish and her mother is Catholic, and Blonsky was raised in her mother's religion.