November 23, 2014 11:10 PM EST

Jennifer Lopez, year after year, shows younger artists how it’s done at the American Music Awards.

Performing single “Booty” with Iggy Azalea, the indefatigable singer/actress/reality-show judge danced (including, yes, a song-ending twerk) like her career depended on it. The performance was the most dynamic of the night. Watch it up top.

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