a pet peeve of mine - song lyrics that use the word "yeah" just for the hell of it.

for example, here's an excerpt of kelly clarkson's "since you've been gone:"

Here's the thing we started off friends
It was cool but it was all pretend
Yeah yeah
Since you've been gone

why is there a "yeah yeah?" why? it has no logic. moreover, the "since you've been gone" part doesn't make any sense either. it's just random phrases put together just to complete the verse. complete idiocy.

another pet peeve of mine - raps that slur words just to make it rhyme. what the crap is that?