The music video was premiered through Vevo on September 24 . The music video takes place in a high school ; it begins with the school principal leaving his office , which Mike Will Made It enters and begins playing " 23 " on a Beats Pill over the intercom . Interspersed throughout are scenes of Cyrus wearing a bikini similar to Michael Jordan 's Chicago Bulls basketball jersey ; she is frequently shown smoking in the bathroom and writing on its mirrors with red lipstick . Khalifa raps his verse in a chemistry lab , while Juicy J 's verse is rapped in a trophy room . A school-wide pep rally later takes place , where Cyrus is gyrating against Mike Will Made It and notably wearing the foam finger used in her controversial performance at the 2013 MTV Video Music Awards in August . Cash Money rappers Birdman and Mack Maine make cameos
2013 MTV Video Music Awards
2013 MTV Video Music Awards
23 (song)