Happy Birthday to S., Happy Birthday to S., Happy Birthday dear S., Happy Birthday to S.!
Because I realized I don't really know if there is a current fandom that I am aware of, I will go ALL old school on you...
"Whoa, dude, it's S.'s birthday!"
"It's going to be as magical as our One True Pairing."
"I'll just show up to the party looking hot!"
Hope today is fantastic, my oldest friend!! (er...not literally my oldest friend-- but what is it this year again? 29?) *love and ♥ to you*