 Heechul is still receiving treatment, and can no longer dance on live stages, often only making sporadic appearances for the latter half of the songs.This also led him to become a sub-rapper and vocalist instead of the lead dancer of Super Junior.In 2009, Heechul decided not to participate in Super Junior concerts after finishing Super Junior's third studio album "Sorry, Sorry", but after being persuaded by other members, he made appearances for the latter half of the "Sorry, Sorry" and "It's You".