Carrie Underwood has done it again. The multi-platinum selling singer's latest single, 'See You Again,' soared to the top of the charts, making it her 18th No. 1 hit.

The song, which Underwood wrote with Hillary Lindsey and David Hodges, was originally intended for the movie, 'The Chronicles of Narnia: The Voyage of the Dawn Treader.' When the tune didn't make it into the film, Underwood knew she wanted to include it on one of her albums instead.

“It takes a positive spin on moving on out of this life, on death,” she explains. “It’s not the end. In my mind, in my faith and what I believe, there is a heaven. There is a God and we’re going to be there someday. It’s of course very sad to lose somebody here on Earth, but having that faith and knowing that you’re going to see them again is such an amazing thing, such a comforting thing, such a happy thing. That’s what the song is all about.”

The song's accompanying video pays tribute to both the victims of the Sandy Hook school shooting, and the recent devastating tornado in her home state of Oklahoma. Watch the video here.

Underwood will wrap up her current run of tour dates on Sept. 13 in Pallyup, Wash., and then immediately head to New York City to being rehearsal for a live production of 'The Sound of Music,' which will air on Dec. 5 on NBC.