Data Insight
Olivia Rodrigo and Dan Nigro co-write the vast majority of her catalog, Nigro is credited on all but a handful of tracks across both albums. SOUR features notable outside co-writers due to interpolations: tracks 4 and 5 credit Taylor Swift and Jack Antonoff based on melodic interpolations of Swift's catalog. GUTS is slightly more collaborative, with Julia Michaels and Amy Allen each credited on one track. Her third album (2026) expands the team further with Amy Allen returning and a guest vocal from Robert Smith.