“….That onesie though…. Brought to you by @sampanagakos” – instagram

Tay Jardine posted a picture on instagram wearing NFL New York Jets Guys Onesie Footie Pajamas ($40.00) and a Glamour Kills Watchout Grey & Black Cuff Beanie (sold out).

photo posted by Ellie Goulding on instagram

Ellie Goulding posted a picture on instagram wearing the Herve Leger Kaya Signature Top Jacket ($709.00), a J Brand Maxine Leather Skirt ($588.00) and a pair of Stella McCartney EcoLeather Platform Ankle Boots ($1,072). You can get the look with a Bebe Top ($39.95), a Forever 21 Skirt ($19.80) and Jeffrey Campbell Boots ($175.00).

photo posted by Little Mix on Twitter

Little Mix posted this photo of Perrie today wearing a Treatment Clothing White Custom Floral Sleeved Sweater (£25.00).

Paramore interviewed backstage at KISS 108’s Jingle Ball on December 14, 2013 – video: kiss108

Hayley Williams wore a Grey and Black Scarf ($26.26) from the band H2O at Jingle Ball in Boston yesterday.

Fifth Harmony backstage at the KISS 108 Jingle Ball December 14th, 2013 – photo: fifth-harmony.org

Normani Kordei Hamilton posed backstage at KISS 108’s Jingle Ball with her bandmates yesterday wearing an American Apparel Striped Baby Rip Crop T ($24.00).

Fifth Harmony backstage at the KISS 108 Jingle Ball December 14th, 2013 – Debby Wong / Bigstock.com

Lauren Jauregui posed with her bandmates backstage at the KISS 108 Jingle Ball last night wearing her American Apparel Velvet Crop Tee ($36.00) a Topshop MOTO Black Acid Denim Skirt ($56.00), the Topshop Gunmetal Lurex Baroque Tights ($28.00) and Steve Madden Azure Boots ($109.95).

Ariana Grande at Z100’s Jingle Ball 2013 at Madison Square Garden on December 13, 2013 – photo: ariana-grande.com

Ariana Grande hung out backstage at Jingle Ball in New York wearing a Topshop Knitted Super Fluffy Bomber ($170.00). Get the look for less with a fuzzy cardigan from Forever 21 ($27.80).

“Chillin after last nights show. another #fashionblog for you jasminators :) cute top I got as a bday gift from ZARA!” – instagram

Jasmine Villegas wore a “Stay Cool” Printed Velour T-Shirt from Zara ($35.90). Her donut iPhone case is from Wildflower Cases ($35.00).

The McClain Sisters at Elizabeth Stanton’s 18th Birthday Benefiting Toys For Tots on December 13, 2013 – video: youtube

Lauryn McClain went to Elizabeth Stanton’s birthday party last night wearing a Dress the Population Janelle Dress in Tan ($255.00). Get the look for less with a leopard bodycon dress from Forever 21 ($22.80) and a faux leather peplum belt from Mango ($49.99).

photo posted by Tiffany Alvord on instagram

Tiffany Alvord wore an Xhilaration Juniors POP Pullover Sweater in Black ($24.99) at yesterday’s Digitour concert in Los Angeles. Hayley Williams has the same top.