Olivia Rodrigo joins No Doubt for 'Bathwater' at Coachella reunion

What Happened: Olivia Rodrigo at the Event

Olivia Rodrigo paused her Guts World Tour to make a surprise guest appearance during No Doubt's first reunion performance in nine years, duetting on 'Bathwater' with Gwen Stefani during their Coachella main stage Saturday-night headline set.