Yoo In Na is a South Korean actress and DJ.
At the age of 16, Yoo joined an entertainment agency as an apprentice singer in 1998 and nearly became part of a girl group. After 11 years and five different agencies, she could not be prominent. Yoo said she had difficulty memorizing the dance choreography required of K-pop singers, and after practicing for eight hours a day, six days a week, she had resigned from becoming an idol.
In 2006, Yoo joined YG Entertainment as an aspiring actress. She made her acting debut in 2009 in the drama "High Kick Through the Roof!" (지붕뚫고 하이킥!).
Yoo was the RJ for KBS Cool FM's "Let's Crank Up the Volume", which is the highest-rated radio program in its timeslot across both AM and FM bandwidths. She stopped hosting the show on December 8, 2015.