Hey check it out! "The Simpsons" did this great episode called "Elementary School Musical" -- a spoof of "High School Musical" !!!
So creative! Oh but wait, "South Park" already did this, using the EXACT SAME TITLE two years ago! (Video here.)
Keep in mind that several years ago, the creators of "South Park" gave such deference to "Simpsons" that they titled an episode "Simpsons Already Did It" -- conceding that they could never compete with the grandaddy of their genre. Maybe it's time for "Simpsons" to do an episode titled "South Park Is Funnier"?
I submit that "Simpsons" has now finally and completely nuked the fridge.