Will Smith's Work

Hey, listen up, buttercup. This joke is playing on the different meanings of the word "will" and "smith". "Will" can be a name, or it can mean doing something in the future. "Smith" is a last name, but it can also be a verb, meaning "to make something". So, the joke is asking if Will Smith will make something, and the answer is yes, Will Smith will make something. Get it now, genius?