Granted, sometimes invoking a pithy "yeah" in song might seem like token verbalizing just to fill in the gaps when a singer can't think of anything else to say. No argument there. Sometimes, though, a forceful "yeah" can express all kinds of raw, unbridled emotion (see James Hetfield). Uh-huh. Yeah. Exactly. See what I'm saying? Keep reading for a quick rundown of the best "yeahs" in music history. Yeaaaaahhhhhh!!!!