Yesterday we learned that Bruno Mars’ brand new song It Will Rain will be the first song released from The Twilight Saga: Breaking Dawn – Part 1 soundtrack, and today we’re hearing from the artist on how/why he wrote it!

From Billboard:

Mars says that “the ‘Twilight’ movies for me (are) a love story. But it’s a dark love story. And I think the best way to describe the song is: it’s the darker side of love. I think that pretty much sums it up.”

“It Will Rain” “started off with me and the guitar,” Mars says, “and I just had this melody in my head and basically laid it down after I saw the film.”

Lucky Mars got to see “most of the movie” so he “could catch the vibe and feel where they were going with it.” But, he doesn’t know (or won’t divulge) where the song will be heard in the film itself. “I have no idea! As long as it’s not after the credits. I hope it’s in a good (scene)!”

Mars says that “It Will Rain” is intended just for the “Twilight Saga: Breaking Dawn” soundtrack and not for his own on-the-horizon second album. “I personally think if I did this for the ‘Twilight’ soundtrack, then this is for the ‘Twilight’ soundtrack,” he says. “This is not for my album.”

It’s nice that Mars (and likely other artists) got to see the film prior to finishing the song!

Don’t forget that the entire Breaking Dawn – Part 1 tracklist will be unveiled on Monday.