Madison Beer arrived at her signing at Barnes and Noble wearing Mimchick Gumdrop Dress ($550.00), By Far KiKi Patent Bag ($750.00), Jenny Bird Nouveaux Puff Earrings ($120.00, Calzedonia 30 Denier Total Comfort Soft Touch Tights ($15.00) and Stuart Weitzman Yuliana Boots ($461.51).

Olivia Culpo shared a couple of pictures on instagram wearing Cindy Corset ($169.00) and Miles Skirt ($159.00) by With Jéan, and Paris Texas Pointed Toe Knee-High Boots ($478.78).

Madison Beer appeared on The Drew Barrymore Show wearing Sterling Blazer ($750.00) and Sterling Mini Skirt ($400.00) by Camilla and Marc, Calzedonia 20 Denier Comfort Cuff Knee-Highs ($5.00), Jenny Bird Icon Large Hoops ($98.00) and Dr Martens Black Adrian Loafers ($150.00).

Sofia Richie shared some pictures on instagram wearing Hanalei Top ($77.00) and Hanalei Bottom ($72.00) from Monday Swimwear, Dries Van Noten Fringed Macramé Midi Skirt ($1,570.00) and Oliver Peoples x The Row Hightree Sunglasses ($199.99).

Hayley Williams performed at Birmingham wearing Theory Slash-Neck Mini Dress ($450.00) and By Far Edie Tall Boots ($630.00).

Katy Perry appeared on American Idol last Sunday wearing Maison Alaïa Ruched Croc-Effect Vinyl Halterneck Midi Dress ($3,590.00) with Bottega Veneta Atomic Patent Leather Mules ($987.00).

Sofia Richie shared some pictures on instagram wearing a Crochet Bra T-Shirt ($590.00) and Crochet Mini Skirt ($1,320.00) by Magda Butrym, Loewe Flower Sunglasses ($380.00), Prada Raffia Tote Bag ($1,950.00) and The Row Constance Leather Slingback Sandals ($849.92).

Hayley Williams performed in London wearing Sportmax Turchia Mini Dress ($945.00), Winona Hair Clip (€50.00) and Lindsay Hair Clip (€50.00) both by Justine Clenquet and Camper Lace-Up Shoes ($160.00).

Katy Perry shared some pictures on instagram wearing Khaite The Uma Crystal Embellished Dress ($8,000.00), Anita Ko Large Olivia Diamond Earrings ($7,077.00) and Jimmy Choo Saeda Crystal Embellished Pumps ($1,095.00).

Lindsay Lohan instagrammed some pictures wearing the Sandro Malvina Fringe Tank Dress ($395.00) with Alexandre Birman Clarita Platform Sandals ($695.00).