If Only

"If Only" is a remake song recorded by South Korean singer and Red Velvet member Joy featuring Paul Kim. Originally recorded and released by singer Sung Si-kyung in 2002, the song was re-recorded and was released on May 31, 2021, by SM Entertainment as a track from her special remake album Hello. Composed and written by Yoon Young-joon, the song features a sound band arrangement and a flute performance. The song debuted at position 69 on South Korea's Gaon Digital Chart and charted at position 38 on the Billboard K-Pop 100.