Kim Kardashian wore a bikini and sat inside a giant birthday cake to announce her latest makeup collection

kim kardashian lacma 2017
Kim Kardashian West is the founder of KKW Beauty. Taylor Hill/Getty Images
  • Kim Kardashian West's cosmetics brand KKW Beauty announced its latest makeup line on Monday.

  • The Opalescent Collection, created in honor of Kardashian West's 40th birthday this month, was announced alongside a photo of Kardashian West sitting inside a giant cake.

  • In the photo, Kardashian West is seen wearing a silver bikini, sparkling leggings, and see-through platform heels.

  • The makeup line includes eye shadow, lipstick, lip gloss, and lip liners, all of which were inspired by the makeup mogul's opal birthstone.

Kim Kardashian West is turning 40 at the end of this month — and she's celebrating the occasion with new makeup.

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On Monday, her cosmetics brand KKW Beauty announced that its newest line, the Opalescent Collection, will launch on October 21 at 10:46 a.m. — the same time and date that Kardashian West was born in 1980. The company also shared a photo of the makeup mogul wearing a tiny, silver bikini top while sitting inside a giant birthday cake.

"To celebrate turning 40, I wanted to create a collection that was unique from the products and shades down to the packaging," Kardashian West said on KKW Beauty's Instagram page.

"As I was developing the product range, I thought of my Opal birthstone because there are so many different colors that come from the stone based on the refraction of light," she continued.

On its Instagram story, KKW Beauty shared another look at Kardashian West's daring birthday ensemble. In addition to the bikini top, she also wore matching bottoms underneath semi-sheer sparkling leggings.

To complete the look, Kardashian West donned clear, platform heels, a tousled hairstyle, and reflective eye makeup.

kkw beauty birthday collection
Kim Kardashian West paired her silver bikini with sparkling leggings. KKW Beauty/Instagram

The KKW Beauty Opalescent Collection includes a $45 eye-shadow palette, $22 semi-matte lipsticks in eight shades, a $20 Birthstone Gloss, and $12 lip liners in two shades.

There will also be bundles available: $32 lipstick and lip-liner duos, a $166 lipstick collection, and the $250 complete Opalescent Collection.

Members of the Kardashian-Jenner clan often dress up in themed ensembles when announcing their latest makeup collections. In September, Kylie Jenner even dressed as a sailor in celebration of her nautical-themed summer line.

She wore a red-and-white striped crop top with off-the-shoulder sleeves, and a white sailor's cap with a golden anchor embroidered across it. Jenner also donned gold bracelets, a matching ring, an anchor-shaped necklace, and bright-red lipstick.

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