POSSIBLE GRAMMY NOMINATIONS
PRISM:
Album of the Year
Best Pop Vocal Album
Dark Horse
Record of the Year
Song of the Year
Best Pop Duo/Group Performance
Walking on Air
Best Dance Recording
Unconditionally
Best Pop Solo Performance
Best music video (

)
Birthday
Best Pop Solo Performance
9 are the possible nominations. She will end up with 3-4 tbh.
Note: Birthday Cash Cash Remix could be nominated in 'Best Dance Recording' but it won't be Katy's nomination.