KACEY & FRIENDS BREAK BRIDGESTONE

Kacey Musgraves wrapped up her Oh What A World Tour: II in the U.S. last night in Nashville. The Grammy AOTY winner set a new attendance record for a female headliner at Bridgestone Arena, with over 18k in the house.

Former tourmate Harry Styles crashed Kacey's finale, and joined her onstage for a duet of "Space Cowboy." After the show, super managers Jeffrey Azoff (left) and Jason Owen (right) performed their own duet of "Hotel California."

Watch a clip of their duet below.