photo posted by Melissa Marie Green on instagram

Melisda Marie Green wore the Personality Fits White Yin Yang Hoody ($30.00) in an instagram photo on Sunday.

Cassadee Pope at the 2014 ACC Awards in Nashville, TN on December 15, 2014 – photo: AKM-GSI

Cassadee Pope arrived on the red carpet at the 2014 American Country Countdown Awards on Monday night wearing a white Badgley Mischka Collection Beaded Short-Sleeve Mermaid Gown ($990.00), a red Ted Baker Round Tassel Clutch ($140.25), and shoes by Stuart Weitzman (not pictured).

photo posted by Alli Simpson on instagram

Alli Simpson wore black and gray raglan Ed Westwick’s “I’m All About That Bass” Tee – American Apparel 3/4 Sleeve ($29.99) in a new instagram photo today. The tee has a picture of actor Ed Westwick who played Chuck Bass on the TV show Gossip Girl. A portion of the proceeds benefits St Jude Children’s Research Hospital.

photo posted by Leigh Anne Pinnock on instagram

Perrie Edwards posed with her bandmates behind the scenes of a photoshoot last week wearing a Michelle Keegan for Lipsy Lace Halter Neck Jumpsuit (£75.00).

photo posted by Pia Mia Perez on instagram

Pia Mia Perez posted an instagram photo on Monday wearing a SpiritHoods Grey Wolf Jacket ($229.00) and a Louis Vuitton Papillon Bag ($1,200.00, wrong color) in Silver Mirror. Get the look for less with a furry Jacket from Jessica Simpson ($79.00) and a barrel bag from Urban Expressions ($59.97).

photo posted by Leigh Anne Pinnock on instagram

Leigh Anne Pinnock posted a new instagram photo on set of a photoshoot with her bandmates last week wearing a Topshop Raw Edge Sleeveless Jacket ($136.00) and a pair of Kurt Geiger Gylda Sandals ($285.00).

photo posted by DEV on instagram

DEV posted an instagram photo today wearing a Street Plant Fab Four Gray Sweatshirt ($23.98 for t-shirt), black pants similar to the Forever 21 Classic Low Rise Skinny Jeans ($15.90), and a pair of white monochrome Converse Chuck Taylor All Star Leather Hi Sneakers ($70.00).

Meghan Trainor at The Voice Live Finale on December 16, 2014 – photo: Tyler Golden/NBC

Meghan Trainor performed on the season finale of NBC’s “The Voice” last night wearing an Alice + Olivia Foss Cut-Out Back Dress ($358.20) over a black turtleneck, Alice + Olivia Argyle Semisheer Tights by Pretty Polly ($48.00), Alice + Olivia Urmila Platform Booties ($395.00, sold out), a jewel-encrusted Melody Ehsani I Drop Gems Mouth Ring ($48.00), a Delfina Delettrez Lips Piercing Ring (€395.00) and matching Delfina Delettrez Lips Piercing Earrings (€385.00), a gold chain Melody Ehsani Rolee Cuff Bracelet ($57.00), and a cartoon-style Musubi Miracle Lips Brooch ($75.00, sold out).

VIDEO: Meghan Trainor: “Lips Are Movin” on The Voice

Demi Lovato bakstage at the HOT 99.5 Jingle Ball, December 15th, 2014 – photo: lovatopictures

Demi Lovato posed backstage at HOT 99.5’s Jingle Ball on Monday wearing a Parker Luna Metallic Jacquard Cropped Top ($275.00), her favourite American Apparel Disco Pants ($85.00) and a pair of Prada Sport Leather Ankle Booties ($684.00). You can get similar boots from Chinese Laundry ($59.95).

Demi Lovato at the HOT 99.5 Jingle Ball Arrivals, December 15th, 2014 – photo: lovatopictures

At the arrivals and meet & greet, Demi wore her Parker Luna Metallic Jacquard Cropped Top ($275.00) with the matching Parker Metallic Jacquard Back Zip Skirt ($220.00) and the same Prada Sport Leather Ankle Booties ($684.00). You can get similar boots from Chinese Laundry ($59.95).

photo posted by Katy Perry on instagram

Katy Perry posted a picture a few weeks ago wearing a Trixie Top ($82.00), the 40’s Skirt ($99.00) and a Knot Hairband ($14.00) from the Turquoise Floral Collection of Trashy Diva, with a pair of Jimmy Choo Alana Sandals ($750.00).