Shrek's Birthday is on February 27, 1999.
Shrek: Oh dear! Today is my birthday!
Donkey: (opens the door and comes in) Greetings, fellow ogre.
Shrek: It's my birthday!
Donkey: Oh! It is?
Donkey: I have an idea!
Donkey: Goodbye, Shrek! I'll see you later.
Donkey: Let me get everyone ready!
Donkey: PUSS IN BOOTS!! GINGERBREAD MAN!! SHREKETTE!! CHEEZ-IT!!
(everyone gathered around Shrek's house, then Donkey lets them in)
Donkey: Let's huddle!
Shrek: (opens the door and comes in) Hello?
Everyone (except Shrek): SURPRISE!! HAPPY BIRTHDAY, SHREK!!
Shrek: You remembered! Thank you.
Shrek: Ooh, you got me cheesecake!?
Donkey: Well, yeah! And it has waffles on top of it!
Shrek: WAAAH! YOU KNOW ME!! THANK YOU!!