Happy birthday to the most hard working person I've ever known. Thank you for teaching us to keep going & not giving up. Thank you for always making us smile. We miss you❤ Hope you always stay happy & healthy too. Don't forget to eat a lot ㅋㅋㅋㅋ

I never can feel happy on birthday, still i congratulate u on getting wiser. I hope it is mostly sunny n less cloudy in ur life. Since ur the only one YOUNG K,u get all the love n attention, keep thriving surviving enduring!! Good luck!!

Hello, Brian.. Hi Young K oppa, how are you? I hope you are always healthy. I never tire of saying that I really like you. In my opinion, you are a very special person, very smart, versatile, handsome and perfect. All the song lyrics that you wrote, for some reason, all relate to my life. Thank you for inspiring my life, thank you for motivating me, thank you for being in my life and coloring my day. Please come back from the military in good health. I love you so much Bri..

Hi, happy birthday to the person who has always encouraged me to stay alive. The days have passed, but I always miss you. Thank you for being born into this world and being a member of Day6. You have no idea how precious day6 in my life is. Thank you for working hard and once again happy birthday. eat a lot there and I love you

Thank you for being the best version of you, thank you for your hard work, thank you for gave us your music and comforting Mydays. Stay healthy and happy while serving, ilsm❤️

Happy Birthday for my super love Man YoungK, wish you all the good things! Thank you for being my support system with music, song, lyric that you made, Love you to the moon and back and Love you - Nisa

Happy birthday kang younghyun!! thank you for being here in this world.. and thank you for always being the spirit and inspiration for MyDay. always take care of your health ok? never get rid of that smile always becomes the spirit of MyDay and thank you for your hard work so far. Love you kang younghyun!! 💗💗

hi brian! first of all thank you for existing 🧡 and bringing me so much happiness through this past few years! this world become a better place especially for me bec you're in it, now all I wish for you is more happiness cause you deserved it loml!

To : Eternal Sunshine Today is your day!! >< Let's eat a lot on your special day, YAP! Like you always said to Myday before for live happy and healthy, now i wanna tell you too. I hope you always be healthy, happy, surrounded by good people and get a lot of love from them like you always gave a lot of love for Myday. Please take care of yourself until we meet again in the future. I really can't wait and so excited for meet you again!!!!!! KANG YOUNGHYUN FIGHTING ON THERE!! And see you soon👋

Helloo, so amazing that I could sent this words to you. Even you don't know who I am, where I am, and what's I look like. But I really thanks to God and your parents that you're in this world of life. Happy birthday to young k since we are in the same age 😊. I Hope you have amazing life, always healthy, life with full of love and bless. I'll always support you, do whatever you want in positive ❤❤❤

Dear our Eternal Sunshine, How are you? Even though I believe you did your best, I always miss you. According to the name your parents gave you, you always light up my days. I want to thank your parents for raising you to become who you are today, of course it's also because of your efforts that you were able to reach this point. The music you make, the lyrics you write always accompany me through the thick and thin. Again I want to thank you for all of that. Last, Happy Birthday My Love ✨