Guess what! It's also the same date as Okamoto Keito-kun's birthday!!
So...
お誕生日おめでとうございます、 岡本圭人くん! 
Happy Belated Birthday~! ﾍ(ﾟ∀ﾟ*)ﾉ
You're officially 17 years old!
It's great that you didn't have a concert on your birthday, or else you might not have time to celebrate with your family & friends (maybe?) !
I am very happy that I'm born in the same year as 4 of the members from Hey! Say! JUMP!!
o(〃＾▽＾〃)o Aa! I forgot! Yesterday was Morimoto Ryutaro's birthday!
Hehe~ He's now 15 years old!
Same year as my brother but my brother's birthday is around December.. (・_・;) So.. Happy Belated Birthday to Morimoto Ryutaro-kun too~
お誕生日おめでとうございます、森本龍太郞くん! 
Time passes by very quickly and it's great to see you guys grow up like that! o(^-^)o
Also.. I wish you all the best to you guys and JUMPs ganbatte kudasai!
! xD