Jimmy Jam is on Celebrity Jobber with Jeff Zito this week. What type of work would Jam be doing if not for being an R&B/pop songwriter and record producer since the 1980s with various artists like Lionel Richie, Herb Alpert, TLC, Michael Jackson, Aretha Franklin, Boyz II Men, Usher, Chaka Khan, and more? Many celebrities will tell you that if not for that one lucky break or meeting, they would have been working at McDonald's, like Rachel McAdams, or teaching middle school drama, like Jon Hamm. In other words, they may have been just a jobber.