MYNAME's Insoo became the 2nd intern to fill in for Super Junior's Leeteuk's vacant spot during the recording for the upcoming episode of SBS's 'Strong Heart'.

'Strong Heart' had previously announced that they will be holding a 'Boom Academy Audition' and it was revealed that around 40 idols will be trying out as�various interns for Leeteuk's vacant spot. Insoo became the 2nd intern following Rainbow's Jisook to try his hand at variety in hopes to become chosen as Leeteuk's replacement.

Insoo is said to have given his all during the show, even showing off his ballet talent to Olympic gymnasts Son Yeon Jae and Shin Soo Ji.

Check out Insoo's audition on 'Strong Heart' on the 4th at 11:15 PM KST!