Park Jung-ah is a South Korean singer, actress, entertainer, and radio DJ.

Jewelry was a South Korean girl group formed in 2001 by Star Empire Entertainment. The group, which underwent several line-up changes over the years, disbanded in 2015. During their 14-year career, the group released six studio albums, which spawned hit songs including "I Really Like You" (2003), "Superstar" (2005) and "One More Time" (2008). The group also branched out into the Japanese market with the release of several successful singles there.