Olivia Rodrigo is covering Avril Lavigne's 'Complicated' and Veruca Salt's 'Seether' on her Sour Tour.

Olivia Rodrigo kicked off her debut 'Sour' album tour in Portland tonight, and during the twelve-song-long set, included covers of Avril Lavigne's classic 'Complicated', and Veruca Salt's song 'Seether'.

Watch fan-filmed clips from the show below...