"Not losing any sleep, I picked up every piece and landed on my feet. Need nothing to complete myself. I am born again, outta the lion's den. I don't have to pretend. The story's over now, the end," the 27-year-old sings on the track, which was written for her upcoming 3D movie, "Katy Perry: Part of Me."
Perry's new single brings to mind other celebrated breakup anthems. Below are some of the tracks that helped our Twitter followers and Facebook fans get over their splits. Click through their selections and add yours in the comments.