Kim Joon, is a South Korean rapper, actor and model, was recently put to stardom with his portrayal as Song Woo Bin, one of the famous F4 in KBS2's 2009 hit drama Boys Before Flowers.

Prior to the F4 fame, Kim Joon is already quite doing a name for himself as a member of K-pop group T-Max, who first debuted in 2007. He is the rapper of the group and also writes the raps himself. Their songs entitled "Paradise" is featured in the first edition of the Boys Over Flowers' soundtrack. Other songs of T-Max who became part in various versions of the Boys Over Flowers' OST are "Say Yes," "Wish You're My Love","Fight The Bad Feeling," and "Bang Bang Boom." Kim Jun also has a single in the soundtrack entitled "To Empty Out" with Kim Jo Han.

Joon, as his T-Max bandmates calls him, reportedly felt awkward on the set of Boys Before Flowers because amongst the F4 members he has the least experience career-wise and yet he is the oldest. Aside from that, his role in the drama happens to be the youngest one amongst the F4.

He admits to be an old soul who loves to read books when he was younger and always has the tendency to be an overthinker

Source: Wikipedia