Stronger (What Doesn't Kill You)

A survival anthem engineered with unusual precision. The producers strip the verses to a taut, muted-guitar funk and a dry drum machine, so Clarkson can deliver the opening lines almost conversationally before the chorus explodes into a four-on-the-floor rush with handclaps and a wordless "whoa" hook designed for stadiums and spin classes alike. Clarkson sings it with grain and control in equal measure, favoring a chesty midrange that sounds like a real person talking rather than a diva ascending, which is exactly why the Nietzsche-by-way-of-radio thesis lands instead of preaching. The lyric is written from after the wound, not during it: the ex isn't being cursed, just informed that his absence turned out to be a gift, that the narrator sleeps fine and dances alone now. That gap between grief and swagger is the song's emotional territory, and Clarkson has always been pop's best inhabitant of it. In 2011–12 it became ubiquitous — gyms, breakup playlists, talent-show auditions — to the point of near-invisibility, which obscures how well made it is. It's a song for the specific morning when you realize the thing you dreaded has already stopped hurting.