Here’s Jermaine Dupri acting a fool at Janet’s concert rehearsal.

Jermaine Dupri had a boring stint on CNBC’s The Big Idea , moreso because of Donny Deutsch’s uninspired questions. Granted, I want to be a millionaire too, but I’m not about to go post up at the mall to seek out young boys who appeal to ladies and whatnot.

[spotted at HHNLive.com]

Young, Rich, and Dangerous: The Making of a Music Mogul, which JD co-authored with Samantha Marshall, chronicles Dupri’s rise to fame and fortune (duh). It’s slated for release on October 16. I wonder if the book says anything about Dr. Dre calling him a midget.

Let’s play rap quiz. Which 1996 album did JD steal his book title from?