On the January 18 airing of MBC's 'Insolent Housemate', Sunggyu explained how he became an idol to his housemate Lee Kyung Kyu. Sunggyu said, "One customer that I met at the cafe I worked at knew that I was auditioning (to become a singer), and he asked which singer I like. At the time, I named Nell and the customer said, 'I'm Nell's manager.' So I got to audition (for Nell's agency) and passed."

SEE ALSO: Seo Dong Wook of 'Kim Dong Ryul and Exhibition' passes away at 50

Sunggyu continued, "I sang Nell's 'Missing' at the audition. At the time, you had to sing one pop song as well. So I tried singing it well doing all kinds of things. And then they asked me if I can dance, but to be honest, I'm not good at using my body. But I told them I enjoy dancing and practiced dancing every day."