Cosmetic surgeries are at an all-time high, Ozempic is bringing back 'heroin chic' and TikTok trad-wives are on the rise - after four waves of feminism, what went wrong? In this brilliant, razor-sharp takedown of popular culture in the twenty-first century, Girl on Girl turns 90s and 00s nostalgia on its head, and shows how the media of that era repackaged the feminist movement as a containable, commodifiable (and hugely successful) product: 'Girl Power'. From the Spice Girls to the Kardashians, to #GirlBoss and OnlyFans, Pulitzer Prize-finalist Sophie Gilbert illustrates how the cultural forces of the last few decades have systematically shaped - and warped - women's relationships