Billie Eilish performed at Las Vegas’ iHeartRadio Music Festival over the weekend, marking her first arena show since the pandemic started.For the set, Eilish performed five tracks from across her catalogue: ‘Happier Than Ever’, ‘Oxytocin’ and ‘Everything I Wanted’, as well as debut album songs ‘Bad Guy’ and ‘Bury a Friend’.“It’s been a year and a half, what the fuck. Let’s do this shit, let’s have fun.