LOL.... here are some that I have misunderstood (and one that a friend.... God rest his soul... used to sing incorrectly)
(don't know this artist... country music from my corny childhood
incorrect: You naked angel, wanna cheat
correct: You'd made an angel, wanna cheat
Bon Jovi "You Give Love a Bad Name" (correct)
"You Give Love a Bandaid"...hehe my friend's (incorrect)
REO Speedwagon "Take it On The Run"
incorrect: "Even if it is keep kiss'n mine"
correct: "Even if it is keep this in mind"
"Smoke on the Water"
"Slow Running Water" (hey, I was too young to know what a bong was, man...hehe)