For the group's Japanese releases, Park wrote and co-composed "Kiss Shita Mama, Sayonara" Park has also written songs for JYJ's albums."I Love You", a track featured in JYJ's 2010 album The Beginning, was penned by Park.
In January 25, 2011, JYJ released Korean extended play Their Rooms "Our Story"." JYJ's second group album and first full length Korean-language album In Heaven was released September 28, 2011.
Starting from April, Park toured Asia and North America for JYJ's first Worldwide Tour.
Park also won "Best Actor" and "Most Popular Asian Actor" at the 6th Seoul International Drama Awards.
His character as Song Yoo-hyun has him playing a half-Korean, half-Japanese second-generation director who will falls blindly in love with the antiheroine.
Hwang) to two years and six months (one year less than prosecution's demand).
Miss Song is currently awaiting the schedule of the second trial and the court's decision on her request.He has starred in dramas Sungkyunkwan Scandal (2010), Miss Ripley (2011), Rooftop Prince (2012), Missing You (2012), Three Days (2014) and The Girl Who Sees Smells (2015).In June 2016, while in the middle of his two-year mandatory military service, Park became the subject of a string of sexual assault charges.Park also wrote and composed "사랑 안녕 사랑 (Love Bye Love)", featured on the group's fourth Korean studio album Mirotic.With TVXQ members U-Know Yunho and Xiah Junsu, Park wrote the rap lyrics to "Love After Love", which appeared on their second Korean studio album, Rising Sun.Park has written and composed several songs that have appeared on TVXQ's Korean and Japanese albums.