Alex Trebek raps Unknown 06:08 https://www.youtube.com/watch?v=5xMXQLoEGCg Remixers start your engines: "Who knew Alex Trebek could flow?" Share: Email ThisBlogThis!Share to XShare to Facebook Related Posts:Brush pens are fun - get two for $7This woman remembers every detail from her life since she was 12 days oldHuman hair as a computer interfaceLost Voice Guy: Stand-up comedian wins over audience without uttering a wordTeens try to guess 1990s songs and their artists