5 Facts You Didn't Know About These Hit Lyrics

What's the origin behind "Cups"? What about "Pompeii"? We found these random facts...

Sometimes, a song becomes popular on our Top 100 and we think to ourselves, what the heck does that song mean, anyways? Where did it come from? Where did the lyrical inspiration come from? Many top pop tunes are pretty straightforward, but for the songs that have a little bit more to them, we've investigated (aka turned to our trusty friend Google) and came up with 5 facts about some of today's biggest chart hits. Let's count down from five to one...

5. Even though Shakira's "Empire" sounds like a first for the singer, it's not her only rock ballad.

Contrary to popular belief, Latin pop star Shakira is a huge rock fan. And not even typical classic rock -- one of her favorite bands of all time is new wave icons Depeche Mode! When you think about it, a lot of her hits feature a guitar, and her latest album Shakira. even has the diva posing on the front clutching the musical instrument. So it's no surprise she dropped the power balled "Empire": even if you look back at her catalogue before she made it big with English-speaking audiences, she was a rocker chick at heart.

4. Bastille's "Pompeii" is about the fallen Roman city, despite not being mentioned in the lyrics.

We always wondered why Bastille's huge single was titled "Pompeii" when the ancient town's name wasn't mentioned in the body of the lyrics, but when it comes down to it, the lyrics are supposed to be a conversation between two individuals that lived through the horrible volcanic eruption that destroyed the historical Roman city. "And the walls kept tumbling down / In the city that we love", cries singer Dan Smith, portraying a survivor of the natural disaster, wondering...how can they be optimistic about this?

3. "Best Day Of My Life" by American Authors was inspired by the classic picture book Where The Wild Things Are.

We got the chance to speak with American Authors' James Adam Shelley a few weeks ago, and when we were discussing their hit song "Best Day Of My Life", he revealed that the song was inspired by one of the most cherished childhood books around. "We kind of based the imagery off the book Where The Wild Things Are", Shelley told us, which totally makes sense when it comes to the line "I stretched my hands out to the sky / We danced with monsters through the night".

2. Jack Antonoff's "I Wanna Get Better" discusses the passing of his younger sister when she was just 13 years old.

The fun. member's new musical project, Bleachers, delivers a first single that's not only catchy, but full of deep subject matter in its lyrics. Fans may be shocked to know that the songwriter lost his sister Sarah at a young age, and the line "I chase that feeling / Of an eighteen year old / Who didn't know / What loss was" seems to cement that factor -- as well as the overall feeling of despair Antonoff reflects in his lyrics.

1. "Cups", made popular by Anna Kendrick in the movie Pitch Perfect, is actually an old American folk song.

Originally recorded in 1937 by by J. E. Mainer's Mountaineers, this chart-topper started off with the title, "Miss Me When I'm Gone", and then renamed "Cups (You're Gonna Miss Me)" by Lulu and the Lampshades in 2009. The track was covered by Anna Burden on YouTube in 2011, and when it made the first page on Reddit, Kendrick saw the clip and decided to learn it for her part in Pitch Perfect. Who knew?

Know any cool facts about some of the world's top pop songs? Share 'em with us in the comments.