Harper, Kaius, Luca, and More: Celeb Parents' Best Photos of the Week

Rainy LA weather didn't stop Hollywood's cutest tots from having a great week. Rachel Zoe took her adorable little one to work with her for the first time, while Busy Philipps took her baby girl to the merry-go-round, and Tiffani Thiessen and her daughter put their outdoor oven to work.

Click through now to see this week's cutest celeb-tot candids — all shot by mom and dad — and don't forget to follow POPSUGAR Moms on Instagram, Facebook, Pinterest, and Twitter! Source: Instagram

Kaius Berman visited his mom Rachel Zoe's office for the first time this week. Source: Instagram user rachelzoe

Cricket Silverstein rode the merry-go-round with her mama, Busy Philipps. Source: Instagram user busyphilipps

Axl Duhamel put on his best bib for his Academy Awards viewing party. Source: Instagram user joshduhamel

Rocco Ritchie and Lourdes Leon posed for their mom, Madonna. Source: Instagram user madonna

Julian Seinfeld was surprised with Miami Heat sweatshirt for his 11th birthday. Source: Instagram user jessicaseinfeld

Naleigh Kelley helped get her pooch in the Oscars mood with a sparkly tiara. Source: Instagram user joshbkelley

Joseph Kushner and Ivanka Trump got ready for golf in sunny Florida. Source: Instagram user ivankatrump

Harper Smith had her hands, and head, full on a rainy LA day. Source: Instagram user tathiessen

Harper Smith and Tiffani Thiessen used some chilly weather as an opportunity to toast some marshmallows. Source: Instagram user tathiessen

Brooks Stuber wore all his favorite things — Thomas the Tank Engine and Batman — together. Source: Instagram user mollybsims

Luca Comrie perfected his modeling pose for his dad, Mike Comrie. Source: Instagram user hilaryduff

Pink and Willow Hart took a scooter ride together. Source: Instagram user hartluck