Oh Ha-young
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Oh Ha-young (born July 19, 1996), better known by the mononym Hayoung, is a South Korean singer, songwriter and actress. She is best known as a member of the South Korean girl group Apink.

Oh Ha-young was born on July 19, 1996 in Seoul, South Korea. During her school days, she attended Seoul Yangcheon District's Shinwol Middle School where she graduated in 2012, and School of Performing Arts Seoul where she graduated in 2015. During her seventh grade, she auditioned for Cube Entertainment where she later on became a trainee. Oh decided not to pursue college after high school to concentrate on Apink's promotions.

Oh was introduced as the third member and the maknae (youngest member) of girl group Apink on February 21, 2011. She debuted with Apink on Mnet's M! Countdown on April 21, 2011, performing their songs "I Don't Know" (몰라요) and "Wishlist", which were included on their debut EP Seven Springs of Apink. For the group, she wrote the lyrics for "What a Boy Wants", included in the group's second full-length studio album Pink Memory (2015), and, together with Eunji, the lyrics for their duet "It's You", included in Dear (2016).