Favorite non-musician cover

[u/Louis049]

I've been thinking for a hot minute about non-musician covers of songs, now I don't mean purpose-written songs a la Friend Like Me - Robin Williams (non-musician), but moreso something along the lines of my absolute favorite song of all time Won't Back Down - Tom Petty and The Heartbreakers as covered by Sam Elliot in Barnyard: The Original Party Animals. I assume most answers will end up coming from TV or movies, since that's where we get non-musicians being musical most often. What is your favorite case of someone who doesn't often use their musical prowess knocking your socks off?

[u/Madarakita]

Always liked Jim Carrey's cover of "I Am The Walrus". Like, if you're gonna get Jim Carrey to do a Beatles song, you have him do the one where he can get away with be outrageous and weird.

[u/evacuatecabbage → u/Madarakita]

Also Somebody to Love by Jefferson Airplane