Q: What’s green and sings?
A: Elvis Parsley!
Explanation: This joke is a play on words- “parsley”, a leafy green used as food, sounds a lot like “Presley” the last name of the famous singer, Elvis Presley. Parsley, Presley, Parsley, Presley, Parsley, Presley- try saying that 10 times fast.
Found the joke in a cracker Jax box..