A birthday party, great!!! ...
Happy Birthday!!! et Joyeux Anniversaire!!! dearest Sirius !!!
Have an awesome and unforgettable one et un jour absolument merveilleux ...
I wish you further on an absolute amazing, magical and exciting journey through your wonderful life and everything you might be wishing for yourself and your loved ones ...
Take care, be happy et Santé! (raising my glass to you) ...