MBLAQ's Lee Joon made an embarrassing, yet hilarious comeback on SBS's 'Star King'! During this week's filming, a Chinese circus visited the studio and showed off incredible performances. After watching this, Lee Joon expressed that he wanted to attempt to fit inside a can. However, despite his best efforts, Lee Joon was unable to fit, and ended up getting stuck in the can. There was also a performance where the circus member showed off his skills with a long rope around his neck. Lee Joon became so surprised that he fell over onto a plate, creating much laughter. Finally, another contestant brought up a karaoke machine that was created on a golf cart. Seeing this, Lee Joon went up to sing 'The Person in My Hazy Memory", but was unable to even begin the song because the contestant gave Lee Joon a 'failed' sign. Source: TV Daily via Nate Tip: P_Ng_H