Jesse Jackson Jr. -- The Michael Jackson Interrogation

It might be the most brilliant line of questioning of 2013 ... a TMZ photog went face-to-face with Jesse Jackson Jr. and demanded to know why he blew his stolen campaign money on a Michael Jackson fedora ... AND NOT A MICHAEL JACKSON GLOVE???

And then the follow up ... DID YOU AT LEAST GET TO WEAR THE FEDORA?

Of course, JJJ just plead guilty to fraud ... after stealing $750,000 from his campaign to support a lavish, over-the-top lifestyle. Jesse admitted he spent the cash on things like fur capes, a mounted elk head, and a fedora once owned by Michael Jackson.