Follow-up

I was looking at the Wikipedia article (sense a pattern here?) for the F-Bomb, and I cane up with this, which may indicate that Spears isn't that original.

In his novel Ulysses (1922), James Joyce used a sly spelling pun for F (and C as well) with the doggerel verse:
If you see Kay,
Tell him he may.
See you in tea,
Tell him from me.