Tank: Interesting thoughts!
Fortunately for Clark, and his audience, karaoke is not about being able to carry a tune (see Cameron Diaz in "My Best Friend's Wedding" singing "I Don't Know What to Do With Myself", and doing a horrible job).
Anyway, Clark has to sing a song, regardless of his skill. And just because other authors have said he can't carry a tune doesn't make it true. To each his own.
But again, Tank, thanks for your POV.
And MadDog - never heard that song but I'm gonna go look it up!