South Korean musician best known as the singer and lead dancer for the all-girl group After School. She is acclaimed for being a multi-instrumentalist, playing a variety of instruments including guitar, drums, piano and flute.
She won the top prize at the Gangwon Province Teen Song Festival in 2007.
She came in 82nd on TC Candler's Annual Independent Critics List of the Most Beautiful Faces of 2013.
She was born Noh Yi Young.
She and Rebekah Kim have both been members of After School.