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.
He has since achieved a so-called "Grand Slam" by having won trophies from each of South Korea's three major television channels, SBS, MBC, and KBS.
On January 17, 2017 (KST), Seoul Central District Criminal Court 15 Single Judge Choi Jong Jin ruled in favor of Park, pronouncing a guilty verdict for the defendants and giving full term sentences as demanded by the prosecution.
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.
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.
He received the "Rookie of the Year" Award, "Netizen Award" and "Best Couple" Award at the 2010 KBS Drama Awards ceremony.
He won "Best Newcomer Award" and "Most Popular Actor in a TV Drama" at The 47th Baeksang Arts Awards, the most prestigious entertainment awards in South Korea.
Two months later, Park made his Korean debut as an actor in the hit 2010 KBS drama Sungkyunkwan Scandal (성균관스캔들).