Here's one that's egg-cellent for you:
Why did the egg go to the doctor?
Because it was eggs-istably feeling a little cracked!
And another one:
Why did the egg join a band?
Because it was an egg-cellent drummer, of course!
Want more egg-cellent jokes? Check out this egg-cellent workout! or try this egg-cellent joke page for even more egg-cellent humor!