photo posted by Melissa Marie Green on instagram

Melissa Marie Green wore a Barbie-inspired Nikki Lipstick Baby Pink Babeland Crop Sweater ($55.00) in an instagram photo today. Kreayshawn has the same top.

Ariana Grande rehearsing for A Very Grammy Christmas, November 17th, 2014 – photo: arianagrandebr

Ariana Grande rehearsed for A Very Grammy Christmas last month wearing a Topshop Lace Bralet ($30.80).

photo posted by Leigh Anne Pinnock on instagram

Perrie Edwards posed in an instagram photo with her bandmates wearing a New Look Pale Blue Polka Dot Pudding Christmas Jumper (sold out) with her River Island Light Wash Vintage Straight Jeans ($40.00).

Bella Thorne at the “Horrible Bosses 2” Premiere in Hollywood, CA on November 20, 2014 – photo: PR Photos

Bella Thorne arrived at the “Horrible Bosses 2” Los Angeles Premiere wearing a Gucci Pearl White Silk Cady Jumpsuit ($1,950.00) and silver Gucci Leila Metallic Platform Sandals ($675.00). Get the look for less with a jumpsuit from Nordstrom ($68.00) and sandals from Michael Antonio ($33.75+).

Sabrina Carpenter at the T.J. Martell Foundation Family Day on November 16, 2014 – photo: gotceleb

Sabrina Carpenter attended the TJ Martell Family Day in Studio City, CA a few weeks ago wearing the Missguided Britney Checked Contrast Collar Romper in Blue ($47.48) with her Tory Burch Rivington Suede Cap-Toe Ankle Boots in Black ($318.00).

photo posted by Leigh Anne Pinnock on Fahlo

Leigh Anne Pinnock posted a new photo on Fahlo wearing a River Island Camel Slim Cigarette Pants ($70.00) and a Zara Oversize Mixed Fabric Poplin Shirt ($59.90).

photo posted by Perrie Edwards on instagram

Perrie Edwards posted a new instagram photo today wearing the Disney Frozen Olaf Pyjamas (£9.00) and Disney Frozen Slippers (£6.00), both from Asda.

Taylor Swift leaving her hotel in London, November 30th, 2014 – photo: taylorpictures

Taylor Swift left her hotel in London yesterday wearing a Demylee Joie Sweater ($284.00), a pair of Joe’s Jeans Mid Rise Leggings (sold out) in Caramel, her Rag & Bone Kerr Nubuck Ankle Boots ($550.00) and her Dolce & Gabbana Large Agagta Shoulder Bag (sold out). You can get a similar pair of jeans from Old Navy ($29.00).

Meghan Trainor live at the 2014 Nickelodeon HALO Awards – video: youtube

Meghan Trainor performed her hits “All About That Bass” and “Lips Are Moving” at the 2014 HALO Awards which aired yesterday on Nickelodeon. She wore the Nympha Sinful Angel Crop Top (£120.00 / $187.33) with a black skirt. Iggy Azalea owns the sheer version.

Ariana Grande arriving at the BBC Radio 1 Studios, December 1st, 2014 – AKM-GSI

Ariana Grande arrived at the BBC Radio 1 Studios today wearing a Topshop Lace Bralet ($30.80, wrong color), a skirt similar to this one from ASOS ($70.12) and her Saint Laurent Janis Pumps ($795.00, Cream) in White.