Patricia L. asked for "musical things" like notes and bass clefs on her friends' birthday cake.
She got this:
Sing it with me, now:
"I knew you weren't treble when you walked in
So shame on you, yeah!"
The baker told Kimberley F. her cake was too small to fit "happy birthday" on it, so Kimberly said,
"Well, since my sister is turning 45 you can just put a big four and five on it, instead."
"four and five" = 11 letters
"happy birthday" = 13 letters
[banging head on keyboard]
And finally, to this day, Mary and Gus still don't know who Ken is:
What do you know, Ken?
WHAT DO YOU KNOW?!
Thanks to Patricia, Kimberley, & Mary and Gus for keeping the mystery alive.