You may think you know Alex Trebek. After all, he has hosted "Jeopardy" since 1984. 

But did you know Trebek can rap? And that he is --apparently-- a "Fresh Prince of Bel-Air" fan? 

The "Jeopardy" host came across a clue related to Will Smith's iconic '90s sitcom, and he opted to rap the lyrics that were written in the answer. 

So how'd he do? Check out the video of Trebek's rap to find out.