Selena Gomez is taking it back to her Disney princess days.

The singer brought out a hot pink ballgown to celebrate her fiancé Benny Blanco, who turned 37 on Saturday.

On Monday, Gomez’s friend and former assistant Theresa Mingus shared a few pictures from Blanco’s prom-themed birthday bash on Instagram, showing off her and Selena’s outfits.

The “How to Get Away with Murder” star, 32, can be seen wearing a strapless fuchsia Oscar De La Renta gown that costs a whopping $10,990. The dress was complete with a corset-style bodice and voluminous high-low bubble skirt.

Gomez paired the gorgeous gown with a black fur coat hanging off her shoulders, black string choker necklace and minimalist makeup including a glossy pink lip.

The star smiled and laughed in the snaps alongside dancer Anna Collins and Mingus, who wore a black corset top and skirt while the former rocked a black pantsuit topped with a blue and white neck tie.

Meanwhile, Blanco played his part in a classic black tuxedo.

In the comments, fans couldn’t get enough of Gomez’s gorgeous look — which actually has a connection to Bravo. “Real Housewives of Salt Lake City” star Angie Katsanevas wore the same look to the Season 5 reunion earlier this year.

“Selly in prom dress giving princess,” one fan wrote in the comment section. “Love her gown and coat 🔥” another user added.

“Real life barbie,” a third shared.

On her own Instagram, Gomez celebrated her fiancé with a slideshow on Saturday, gushing that she is “not sure what [she] did to deserve” him.

“But damn am I glad you were born,” she added. “happy birthday baby ♥️.”

With the couple continuing to release singles from their forthcoming joint album, “I Said I Love You First,” we sure more joint style moments are to come.