Were you singin' “Happy Birthday” to Brian? That's nice. Well, let'd do it then! Wait a second, wait a second, we gotta find the right note!
The key! What key? Right, that's right, here we go …
Happy birthday to you
Happy birthday to you
Happy birthday, dear Brian
Happy birthday to you
(Composers: Mildred J. Hill & Patty Smith Hill)
[Thanks to lpintek72 for adding these lyrics]