Katy Perry was on a mission when she sat down to write her new single, the dreamy ballad "Wide Awake." Full of imagery about moving on from a tough situation, according to Perry, the song is the perfect way for her to end her Teenage Dream era. It is also a track she wrote specifically for her July 5 movie release, "Katy Perry: Part of Me."

"I love this song so much," she told MTV News. "It was a song that I hadn't written for Teenage Dream. I was doing this movie and they asked me if I wanted to write an end-title song for the movie and I was like, 'I know exactly what I want to say.' I was really kind of dying to write another song at that point. I didn't want to wait until I did a whole new record, and it's kind of the perfect last word of me at this moment."

Katy will have a lot more to say about the track and its video when she opens up about it all during a special MTV News interview, "MTV First: Katy Perry," airing on Monday. Perry said about the clip, "I just wanted to tell a story about myself going through this journey, maybe sometimes trying to get out of the maze. There's good parts, there's bad parts. Of course, there have been a lot of things that went on last year that I had to get through and overcome. I think what probably kept me going is just the purity of my belief in music."

Make sure to tune in to MTV this Monday, June 18, at 7:53 p.m. ET, for the world premiere of "Wide Awake," followed by an exclusive 30-minute interview with Katy and MTV's Sway Calloway on MTV.com. Perry will discuss the song as well as her upcoming 3-D concert film, "Katy Perry: Part of Me."

The "Wide Awake" video will also debut on VH1, Logo and TeenNick, in addition to MTV.com, VH1.com and LOGOtv.com. Perry's fans around the globe will be able to stream the video online at KatyPerry.MTV.com.