Nah, Boo Hoo Girl is a Korean singer and actress named Yoona (real name: Im Yoon-ah).
Became famous as member of kpop girl supergroup "Girls' Generation", but now I think she is a bigtime actress.
source: I have a Korean wife.
As a fairly recent discoverer of K-drama..... I hate you :)
Boo Hoo Gurl certainly is an attractive young woman.