Julia Carin Michaels is an American singer and songwriter. She has received five Grammy Award nominations, including twice for Song of the Year and Best New Artist, as well as nominations from MTV Video Music Awards, Billboard Music Awards, and American Music Awards.

Nervous System is the third extended play and major-label debut by American singer and songwriter Julia Michaels, released by Republic Records on July 28, 2017. Most of the tracks on the EP were composed by Michaels and her frequent writing partner, Justin Tranter, as well as the songs producers, Benny Blanco, Stargate and Mattman & Robin. Musically, it is a pop record and lyrically it explores a former romantic relationship of Michaels'. It is Michaels' first EP to have a commercial impact.