Jennifer Lopez [1] kicked off the American Music Awards right on Sunday night when she performed a dance medley to some of the year's hottest songs [2]. But while she killed it with hits like "Uptown Funk" and "Bad Blood," one song didn't get her the best reaction from the audience — well, from one audience member in particular. Jennifer busted out a few sexy dance moves to Nicki Minaj's song "Anaconda," and when the camera went to the rapper in the audience, she looked less than pleased. Watch the funny reaction above, and then check out Gigi Hadid throwing shade at Harry Styles [3] on the AMAs red carpet [4].