Relive the Hottest Moment of the 2015 AMAs: Jennifer Lopez's Insane Medley

As we prep for Sunday's American Music Awards, we're reflecting back on last year's show. Host Jennifer Lopez owned the stage, singing and dancing to a medley of some of the year's hottest songs. Her rendition of "Bad Blood" may have even made Taylor Swift raise her eyebrows in approval! Even more entertaining than her amazing bodysuit? The artists' reactions from the crowd. If you can't get enough, you should also check out her hottest moments from last year!