On February 10th, f(x)'s Luna guested on KBS 2TV's "Happy Together 3", and revealed that she made a pre-debut appearance on SBS's "Truth Game". At the time, Luna, who was 13, was cast as a young 'wave' girl who dreamed of becoming a singer as amazing and sexy as Chae Yeon. Through this opportunity, she was later picked up to debut as a formal singer. SHINee's Onew requested to see that same dance on the spot, and Luna obliged by delivering an impressive performance. Netizens commented, "I never even imagined she would have appeared on such a show," and "She had such talent even then!" Check it out below: Source: TV Daily