The singer, 37, cut a casual figure in a cosy knitted jumper which she layered over a nude polo neck.
Katy teamed the look with burnt orange PVC trousers, Birkenstocks and a checkered face mask.
Cosy: Katy Perry wrapped up warm as she hit the shops ahead of Halloween in Los Angeles on Saturday
The I Kissed A Girl hitmaker slicked her blonde locks back into a low bun and accentuated her natural beauty with a polished make-up look.
Katy picked up a newspaper as she stopped off at a local store ahead of the festivities.
Earlier in the day, Katy reminisced on a week away with her best pals as she shared a series of snaps from a quick trip down to Cabo San Lucas, Mexico.
Casually-clad: The singer, 37, cut a casual figure in a cosy knitted jumper which she layered over a nude polo neck
The singer admitted to having a ton of fun with fiance Orlando Bloom as she joked that her ‘hangovers last 5-7 business days.’
Katy looked completely at ease while soaking up the sun with her friends as she roamed around the resort wearing a gorgeous black lace dress.
She swept her bright blonde hair back into a low bun and showed off her golden tan while heading to dinner.
Two if by sea: Earlier in the day, Katy reminisced on a week away with Orlando and her best pals as she shared a series of snaps from a quick trip down to Cabo San Lucas, Mexico
Party time: Dozens of bright pink balloons covered the room for the birthday girl
Orlando and Katy smiled as they posed next to a massive yacht named ‘Happy Endings’ which was docked in the marina.
The group enjoyed a romantic moment on the sand while riding horses into the sunset by the shoreline.
She recently marked a major milestone with her daughter’s first birthday and wrote on Twitter: ‘1 year ago today is the day my life began… Happy first Birthday my Daisy Dove, my love.’
The I Kissed a Girl songstress admitted becoming a mother has taught her the importance of unconditional love.
She explained: ‘As a performer, I’ve always relied on the love and acceptance and validation of the outside world and that ultimately can waver at times.
‘When you have a child, you have someone who looks at you and doesn’t know anything on your resume, doesn’t know anything about your bank account, doesn’t know anything, doesn’t care, and just loves you.’
Bliss: The group enjoyed a romantic moment on the sand while riding horses into the sunset by the shoreline