Kermit the Frog is a character mentioned by Shrek in a 2001 interview. His song "It's Not Easy Being Green" was cited by the ogre when asked "What's it like being green?", to which he responds "I have to disagree, I think it's very easy to be green. It's very easy to be big and green!".
For a split second, Shrek gets Kermit's quote confused with William Shakespeare.
- Both Kermit and Shrek are the few fictional characters to have stars on the Hollywood Walk of Fame.