Millie Bobby Brown and Jake Bongiovi channel Barbie and Ken for her 18th Birthday

Stranger Things actress Millie Bobby Brown and boyfriend Jake Bongiovi, legendary rockstar Jon Bon Jovi's son, celebrated her 18th birthday by dressing up as Barbie and Ken. The British actress, who rose to fame as a child star playing Eleven on the hit Netflix series, turned 18 on Saturday, Feb. 19.

Millie celebrated the milestone with her boyfriend and friends the night before in London, hitting up the Cirque Le Soir nightclub and the Windmill club, Mail Online reported.

On Saturday, both Millie and Jake posted an Instagram selfie of themselves showcasing coordinated styles inspired by Barbie. Jake sported bleached blonde hair—lightened from his dirty blonde locks—and the brunette actress wore a long wig of the same light color. Millie wore a colorful, corset-style floral Annie's Ibiza dress while he rocked a brown and white floral collared shirt.

"Happy birthday barbie ily <3," Jake captioned his post.

Millie commented, "Endless love."

She captioned her identical post, "Hey ken!"

Jake commented, "Ur rly pretty."