Park Seo Joon, V, Hyungsik, and Choi Woo Sik get together for birthday celebrations

BTS' V, Park Seo Joon, Hyungsik, and Choi Woo Sik enjoyed a spa day together.

On December 20, Park Seo Joon shared photos from the spa day with his celeb friends. He captioned, "In order to congratulate the one whose birthday recently passed and the one whose birthday is coming up, we have spent a short yet impactful day in midst of our busy schedules, and once again determined ourselves to work hard. It's a bit late but I want to sincerely thank my family, peers, and loving fans for the birthday congrats. I will continue to work hard to show the best of me wherever I go. I love you."

Park Seo Joon celebrated his 30th birthday on December 18. Meanwhile, V is celebrating his 23rd birthday on December 30.

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생일이 며칠 지난 자와 며칠 안남은자를 축하하기 위해 바쁜와중에도 극적으로 시간이 맞아 짧지만 강력한 하루를 보내고 열심히 살자고 모두함께 다시한번 다짐 했습니다. 조금 늦었지만 생일을 축하해 주신 가족, 지인 그리고 사랑하는 팬분들께 진심으로 감사하다는 말 다시 한번 전하고 싶구요 앞으로도 어느 곳에서든 최선을 다 하는 모습 보일 수 있도록 열심히 하겠습니다. 사랑합니다❤️

A post shared by 박서준 (@bn_sj2013) on Dec 19, 2018 at 11:09pm PST