Avril Lavigne out in Hollywood, CA on October 31, 2012 – photo: David Tonnessen, PacificCoastNews.com

Avril Lavigne went out on Halloween wearing a sailor-inspired dress and hat. You can buy her exact Sailor Halloween Costume for $14.67 on eBay.

Demi Lovato filming The X-Factor: Live Show – photo: Brian Dowling / FOX

Demi Lovato takes the stage with her group on Wednesday night’s X Factor: Live Show in Los Angeles. Demi rocked her new brunette hair wearing a Topshop Denim Studded Collar Dress ($150.00) and the Stud Venom Shoes by Chloe Jade Green for Topshop ($208.00, not available online).

Ariana Grande leaving her Hotel in Vancouver October 31st, 2012 – photo by arianapictures.com

Ariana was fresh faced with no makeup leaving her hotel yesterday looking comfy and casual. She wore a Juicy Couture Covent Garden Pansies Jacket ($104.99). She teamed the jacket with a pair of skinny jeans, a backpack and a pink scarf.

Demi Lovato at iHeartRadio Music Festival on September 21, 2012 – photo: PR Photos

The beaded dress that Demi Lovato wore at the iHeartRadio Festival in September is now available. It’s the Gold Power Stud Dress from Topshop (190.00), which she paired with her favorite Topshop ‘Supreme’ Platform Pumps ($176.00).

photo posted by Carly Rae Jepsen on instagram

Carly Rae Jepsen wears the Flash Face Sequin Dress by Louise Gray for Topshop ($150.00). This dress is very bold and playful — it has a giant gold smiley face!

Ke$ha photographed by Sarah McColgan for VIBE magazine – photo: keshaweb.org

Ke$ha rocked a number of glamourous and sexy looks for her VIBE magazine cover photoshoot. One of these outfits is a black blazer worn over studded lingerie from Sex Trash by Stephanie Paterek. She wears the Spellbound Panty ($200.00) with a corset top from the “Try a Little Tenderness” collection.

Borgore feat. Miley Cyrus – “Decisions” (Music Video)

Miley Cyrus appears in the new music video for “Descisions,” a track she featured on with Borgore. She wore one lightning bolt earring — it’s Melody Ehsani’s Swarovski Lightning Bolt Earrings in “Jailbird” ($100.00). You can also buy the mirrored version of these earrings for $42.00.

Little Mix at Eastland Shopping Centre October 31st, 2012 – photo by dailymail.co.uk

Jade and her bandmates performed at Eastland Shopping Centre on Wednesday for their fans. Jade wore a Michael Roberts For Onetshirt Karl Lagerfeld Tee, which is now sold out but a range of similar tees by the same brand are available here. She teamed the look with Lucas Hugh Krypton Cycle Shorts (£60) and a pair of Timberland Classic 6″ Premium Boots ($165.00).

Cher Lloyd and her fiancé arriving At Perth Domestic Airport October 31st, 2012 – photo by cher-lloyd.org

Cher arrived at Perth Domestic Airport with fiancé Craig looking casual with no makeup. She wore an Adidas Trefoil Hoodie in Purple ($55.00), which she also wore meeting fans in Melbourne last week. She teamed the hoodie with a pair of MOTO Acid Blue Jamie Jeans, which she wore to Z100 Portland a few months ago, and are sold out. You can get the look with Nasty Gal’s Second Skin Jeans ($68.00). Her shoes look like similar to, if not exact Jeffrey Campbell Homg Sneakers ($74.95).

Cassadee Pope in the “Vote Team Blake” promo video for The Voice – youtube

Cassadee Pope is wearing the Large Skullies Jumper from Betsey Johnson (the same one that Miley Cyrus has), which is unfortunately sold out.