photo posted by Ellie Goulding on instagram

Ellie Goulding posted a picture on Instagram wearing a Jac Vanek Slacker Sweatshirt ($44.00), Coincidence & Chance Textured High-Rise Pinup Shorts from Urban Outfitters ($29.99), and a pair of Nike Air Max 90 HYP Premium ($160.00) running shoes.

photo posted by Selena Gomez on instagram

Selena Gomez posted a picture yesterday wearing a Topshop Green Leaf Longline Bikini ($68.00).

Paramore performing at the Teen Choice Awards on August 11, 2013 – photo: Paramore Updates

Hayley Williams wore a teal and black checkerboard print bralet and skirt from Jeremy Scott’s Fall 2013 Ready-To-Wear collection with Wolford Paula Tights ($37.20) and Dr. Martens Jadon 8-Eye Platform Boots ($170.00) during Paramore’s performance of “Still Into You” at the Teen Choice Awards last night.

Ariana Grande posted this photo to instagram but shortly deleted it – photo: ArianatorIsland

In this instagram photo Ariana Grande wore a UNIF Bundy Denim Jumper, available at Urban Outfitters ($49.99), Dolls Kill ($130.00), Karmaloop ($135.00), Akira ($139.00), Revolve ($147.00), Nasty Gal ($148.00), and more.

Katy Perry outside of Z100 in New York on August 12, 2013 – photo: PacificCoastNews.com

Katy Perry visited radio station Z100 in New York City today wearing a Lucca Couture Velvet Skater Dress ($64.13) from ASOS.

Little Mix backstage creations celebrity retreat at Teen Choice Awards – photo: little-mix.us

Perrie Edwards poses with her bandmates at the Teen Choice Awards: Backstage Creations Celebrity Retreat on Saturday. She wore an Amelie Sweetheart Off The Shoulder Crop Top from Boohoo ($20.00), American Apparel High Waist Jeans ($80.00) and the Ecote Pom Pom Ethnic Backpack (Sold Out). You can find a Ecote Backpack for $12.99 at Urban Outfitters.

Bridgit Mendler at the 2013 Teen Choice Awards – photo: Helga Esteb / Shutterstock.com

Bridgit Mendler walked the red carpet at the Teen Choice Awards wearing a Kelly Wearstler Wind-Up Dress ($170.00) and a pair of Ruthie Davis Jinny Studded Sandals (Not available online).

“Soooo sleeeeeepy… Good morning!!!” – Demi Lovato on Keek

Demi Lovato posted a keek for her fans yesterday morning wearing an Off Dutee Queen B Tee (£40.00).

Fifth Harmony at D23 Expo – photo: fifth-harmony.org

Ally Brooke poses with her bandmates at the D23 Expo wearing a Topshop Scribble News Midi Dress ($70.00).

photo posted by Rihanna on Instagram

Rihanna posted a picture on Instagram wearing a 10 Deep My Country Tee ($32.00).