The singer performed at the Griffith Observatory in Los Angeles, California, for the CBS special, "Adele One Night Only," which aired on Sunday
Click through for a couple more stills of how Olivia's prom dress turns out by the end of the night (sorry for the spoiler, but she throws an oversize rhinestone blazer on top), then check out some (mostly) vintage frocks we found if you can't help but want to channel Olivia Rodrigo and her mom
halter tie neckline
In typical millennium socialite fashion, when Paris Hilton turned 21 in 2002, she threw five different parties around the world over the course of the five nights, hitting London, New York, Tokyo, Los Angeles, and Las Vegas
The gown is adorned with delicate 3D flower embellishments, adding a touch of texture and charm that makes this dress truly unique