The band performed an 18-track set at the Fox Theater in Pomona, California on Tuesday night (August 14), ahead of their performance at next weekend's UK music event.
Paramore played hits from their first two albums, while singer Hayley Williams spoke about the band's troubles over the past two years following the Farro brothers' departure, according to NME.
As well as their older work, the band performed new songs including 'Monster', 'Hello Cold World' and 'In The Mourning'.
They concluded their set with their global hit 'Misery Business'.
Paramore will perform on the main stage at Reading Festival on August 24 and Leeds Festival on August 25.
The Cure, Foo Fighters and Kasabian will headline the three-day music event between August 24-26.
Paramore's full setlist was as follows:
'Brick by Boring Brick'
'Born For This'
'For A Pessimist, I'm Pretty Optimistic'
'That's What You Get'
'In The Mourning'
'The Only Exception'
'Hello Cold World'
Watch the music video for Paramore's 'Misery Business' below: