Park Soo-young (born September 3, 1996), known by the stage name Joy, is a South Korean singer, actress, and host. She debuted as a member of South Korean girl group Red Velvet in August 2014. In 2017, Joy debuted as an actress and has had starring roles in the television dramas The Liar and His Lover (2017) and Tempted (2018).

In 2021, Joy officially debuted as a soloist with the release of her special album Hello.

Park Soo-young was born in Jeju Island and raised in Dobong, Seoul. She is the eldest of three sisters. As a child, Joy was interested in modern trot music and was influenced to become a singer after receiving praise for her rendition of Korean rock band Cherry Filter's song "Flying Duck" during a grade school festival. Joy auditioned and was cast by SM Entertainment at the SM Global Audition in Seoul in 2012.