Worst Offenses: "I Gotta Feeling," and "My First Kiss," and countless other songs where lyricists thought no one would notice.
I first pointed out how much I hated this practice in the only viral video of my life: the Hate by Numbers on The Black Eyed Peas. Tune in to the 1:30 mark of this awful monster hit:
Yes, will.i.am rhymes "live it up" with "spend it up." He sets up a rhyme no one asks him to, and then fails to deliver. That's like Santa Claus handing you two presents, one shaped like a bow and the other shaped like an arrow, and learning that they're both arrows, but one's in a bow-shaped box. OK fine, that's not a very good explanation, but why do you need a good explanation? It's just lazy.
Notable Exception: "Walk on the Wild Side"