This probably started when one day Jimmy just thought, "I need to have some way to have will Smith rap the fresh Prince theme."
 I wonder why Will Smith had an issue with the "Family Matters" theme song? You noticed Will Smith kept telling Jimmy that he "liked that song too much" when they were doing the Family Matters theme. Also, I wish they would've did the entire "Fresh Prince of Bel-Air" theme...that would've been utterly amazing.
Overall, this was a very very interesting segment.