Megan Fox and Hailey Bieber's Go-To JW Pei Bags Are $60 on Amazon

JW Pei Abacus Bag ($129)

This is the rhinestone version of the aforementioned Abacus bag, and boy, is she a beaut. It's significantly smaller than it looks in the photo, but that makes it great for concerts and special occasions when you only need the essentials. As one shopper who rated it five stars wrote, it "looks like a Madison Avenue purchase" for a whole lot less.