Millie Bobby Brown and Jake Bongiovi are in celebration mode!

The Stranger Things star, 19, and her fiancé, 21, were photographed attending what appeared to be a party for their recent engagement.

In a series of Instagram photos shared by Pete Burkill Hair, the newly engaged couple was all smiles as they posed closely together. Brown wore a cream-colored, paisley, two-piece set while Bongiovi had on a green-colored suit.

One shot featured Brown and Bongiovi standing in front of a sign that read, "Mr. and Mrs. Bongiovi," which was surrounded by several white balloons in the shape of a heart.

Instagram/peteburkill

"Congrats to this beautiful couple!" the post's caption read, noting that Pete Burkill styled Brown's hair with göt2b GLUED Blasting Freeze Hairspray "to secure & hold the finished look & Smooth Operator to make @milliebobbybrown’s hair super silky. And the GLUED Water-Resistant Spiking Gel on @jakebongiovi for an ultra strong hold."

The account also noted that Foxy Locks hair extensions were used. Michelle Kelly was credited as the stylist while Buster Knight did the makeup.

Neither Brown nor Bongiovi has shared photos from the occasion. PEOPLE has reached out to their reps for comment.

Instagram/peteburkill

Brown and Bongiovi first sparked dating rumors in June 2021. At the time, Jon Bon Jovi's son snapped a selfie with the Enola Holmes actress, captioning the pic, "bff