Waking Up In Vegas by Katy Perry is about the impulsive and sometimes reckless behavior people exhibit while in Las Vegas. The song narrates a wild night out in the city of lights, where unexpected and often humorous consequences follow the carefree actions of the protagonists. Key themes include spontaneity, regret, and the stark contrast between fantasy and reality. Poignant moments in the song include the realization of the previous night’s chaos, the playful yet sobering acknowledgment of mistakes, and the ultimate message that sometimes you just have to laugh off your misadventures and deal with the aftermath.