Millie Bobby Brown and Boyfriend Jake Bongiovi Look Unrecognizable as Barbie and Ken

Millie Bobby Brown is officially grown up. To celebrate her 18th birthday, the Stranger Things star and her boyfriend, Jake Bongiovi, dressed up as Barbie and Ken.

"Hey Ken!" Brown captioned her Instagram post. Bongiovi, AKA the son of Jon Bon Jovi, commented, "Ur rly pretty." The couple sparked dating rumors in June after posting an Instagram photo together and captioning it "bff<3." However, they didn't make their relationship official until November after Brown posted a photo kissing her beau on the cheek.

Brown is no stranger to changing up her look, whether it's for work or for fun. In December, she shared a photo of herself rocking a bob with bangs. The look is suspected to be for her upcoming Netflix movie The Girls I’ve Been based on the YA thriller novel of the same name by author Tess Sharpe. Additionally, Brown is set to reprise her role as Eleven in Stranger Things, which returns with a two-part fourth season in May and July.

Check out the photo of Brown and Bongiovi as Barbie and Ken below.