On December 13, J.Y. Park posted a series of photos/video clips via Instagram capturing memorable moments from his birthday party.

Fans, JYP staff as well as junior idols got together to celebrate J.Y. Park's birthday.

The GOT7 members prepared a cake while TWICE members Tzuyu, Dahyun, and Nahyun gave a greeting message and sang happy birthday to their dear boss, in a cute way.  Former IOI member Jeon So Mi also dedicated a special birthday song as well.

As for the JYP staff, they held a surprise party during the middle of a meeting, catching their boss off-guard.  "So surprised in the middle of a meeting LOL Thanks guys but no more since I get really surprised TT", he reacted.

For the grand cake he received, J.Y. Park commented, "Thank you for the cake, drinks and most of all your touching letters...seems like I'm always receiving TT."

Happy birthday, J.Y. Park!

#JYP #Birthday ??, ?? ??? ????? ??? ?? ????. ?? ??? ?? ? ???...?? Thank you for the cake, drinks and most of all your touching letters...seems like I'm always receiving TT

A post shared by J.Y. Park (@asiansoul_jyp) on Dec 13, 2017 at 3:00am PST

#JYP #Birthday #Twice #Birthdaysong ??? ??? ???^^ What should I do with these girls? :)

A post shared by J.Y. Park (@asiansoul_jyp) on Dec 13, 2017 at 12:16am PST

#JYP #Birthday #????? #CandidCamera ???? ?? ?? ??? ?? ????? ?? ??? ?? ??...?? ???^^;; So surprised in the middle of a meeting LOL Thanks guys but no more since I get really surprised TT

A post shared by J.Y. Park (@asiansoul_jyp) on Dec 12, 2017 at 10:59pm PST

#JYP #Birthday #Got7 ??! ??? ???~^^ Pleasant surprise! Thanks guys :)

A post shared by J.Y. Park (@asiansoul_jyp) on Dec 12, 2017 at 7:50am PST

#JYP #Birthday ????...?? Thank you! :)

A post shared by J.Y. Park (@asiansoul_jyp) on Dec 12, 2017 at 7:47am PST

#JYP #Birthdaysong #Somi #?? So cute^^ ???~?

A post shared by J.Y. Park (@asiansoul_jyp) on Dec 13, 2017 at 5:05am PST