Gigi Hadid, Reese Witherspoon and Nicole Kidman were on hand Wednesday night at Bridgestone Arena in Nashville. Gigi hung out with Kacey Musgraves, who performed with Willie Nelson. Kacey also brought home some hardware as Female Vocalist of the Year and for Music Video of the Year for her song "Rainbow" off her "Golden Hour" album.

Gwen Stefani was arm in arm with Blake Shelton, who won Single of the Year with "God's Country." Lil Nas X also attended ... and he, along with Billy Ray Cyrus, won Music Event of the Year with the smash hit "Old Town Road."

Reese also announced the winner for Entertainer of the Year ... with Garth Brooks beating out Carrie Underwood, Eric Church, Chris Stapleton and Nicole's hubby, Keith Urban.