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"

Enter Lou Reed. Not literally. That's impossible because he died last year, unfortunately. And I'm still really bummed out about it, so no stupid jokes, OK?! Anyway, in "Walk on the Wild Side," Lou certainly engages in some clunky same-word-rhyme wordplay when utters the immortal "but she never lost her head, even when she was giving head." Why is this an exception that works? Maybe because it's dirty, so it's distracting. Maybe because the song is so sexually visceral throughout that there is no time for finer things like normal rhymes, or maybe because it's Lou Reed and shut up because he says so.

Where to begin? If you didn't click the link, and oh man, you totally should, this song tells the story of a high school scrub football player whose blind father comes to the games and listens for his son's name. Anyway, one day his dad's not there. After halftime, they send the scrub player into the game and he plays super well. Why? Well, at halftime he found out that his dad is dead. Yeah, no longer just blind. That's not sad enough. Now he's dead. But the good news? He's in Heaven now, so this was the first time he actually saw his son play.

Notable Exception: "The Devil Went Down To Georgia"

So sure, this country song tells the famous blues story of the devil at the crossroads and countrifies and fiddlefies it. My spell check is telling me that countrifies and fiddlefies are not actual English words, but that just shows that my spell check has never heard this song, because this song jams out so hard in the hoe-downiest way that it makes its own words (interestingly, my spell check does recognize "hoe-downiest," so go figure). But I guess the lesson learned is that if you're gonna be melodramatic and cram a movie into a song, you might as well go full throttle and make it an epic battle of good and evil.

Obviously, there is nothing wrong with metaphors. Metaphors are the backbone of poetry, lyrics, and creative prose. The job of a metaphor is to illuminate, to teach you something you didn't realize before by virtue of the comparison. William Shakespeare wrote that "All the world's a stage, And all the men and women merely players; They have their exits and their entrances." The comparison conveys the life is finite. It invites consideration of whether life is more than just hitting your marks and doing what you're supposed to until death comes. It's not merely descriptive.

But the lyrics of these songs tell you what you already know. Nothing is learned. They are no more poetic than saying that love is a sandwich. We're happy when it's not rotten. So yeah, "life is a highway, I want to ride it all night long." Yeah, that's what you do on a highway all right. You want to be alive. OK. Thanks for incorporating a highway into that sentiment.

Notable Exception: "Love Is a Battlefield"

I gotta be honest with you. I'm not sure that there are any exceptions. This is just a trite construction, born to fail, but the closest I could come was Pat Benatar's "Love Is a Battlefield" which sort of uses it.

The acceptable lyrics in questions are: "Love is a battlefield, We are strong, No one can tell us we're wrong." While not a perfect example, these lyrics are better than the atrocious ones above because they don't simply describe the noun with an obvious verb. If the lyrics were "love is a battlefield, we fight and fight," then yes, they would suck every bit as much as the other examples. Instead, they go with the less obvious observation that people fight when they are too convinced they can't be wrong, and yes, I guess that is true in love and war. It's not winning a Pulitzer, but sucks far less than this construction typically does.