There were many songs.
One that comes to mind was from the Judas Priest song, You've Got Another Thing Comin'
Proper first line = One life, I'm gonna live it up!
The version I sang until corrected = Whatta life, I'm gonna live it up. Now this is a small transgression on my part IMO.
Here's one from a guy who I replaced. While auditioning for the band I found his pile of papers/lyrics that he left behind. From AC/DCs SHOT DOWN IN FLAMES where it says.. "Then a guy with a chip on his shoulder said, don't touch buddy she's mine" His version "Don't stop punishing man" We all had a laugh and I got the gig. LaLaLa-La