Answer the following question: What key details about lee joon can be extracted from the following bio? Bio: lee chang-sun -lrb- ; born february 7 , 1988 -rrb- , better known by his stage name lee joon -lrb- -rrb- is a south korean idol singer , dancer , actor and model . he was a member of the korean male group mblaq until the end of november , 2014 when his contract with j. tune camp officially ended ; on december 16 , 2014 it was announced that he had departed from the group and for the time being he would focus on filming his then current tv series , mbc 's mr. back . since early 2015 he has been signed to prain tpc -lrb- a prain global company -rrb- , which manages other actors such as ryu seung ryong , park ji young , park yong woo , yang ik joon , moon jung hee and others .
Answer:
- name is lee joon- associated acts is mblaq , dynamic black