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Oh no, Dianna Agron.
The Glee actress showed off a little more than she intended when leaving the Alexander McQueen Savage Beauty gala in London last night.
The blond beauty stepped out in a Johanna Ortiz navy and black low-cut gown and accidentally suffered a nip slip as she was seen making her way into her ride.
The stunning fashionista paired her revealing look with a Hunting Season clutch, Annina Vogel jewels and Christian Louboutin heels, natch.
Agron was previously in Paris where she was spotted attending several fashion week events like the Louis Vuitton show (alongside Kim Kardashian, Kanye West, Selena Gomez and many more) and the Miu Miu Fall 2015 collection.
Her minor wardrobe snafu—OK, let's call it what it is…a full-blown nip slip—didn't appear to dampen her spirits as she's been happily documenting her trip across the pond on Instagram.
Keeping her head high is one thing that Agron has learned to do since sky-rocketing to fame with the success of her hit Fox show.
"You just realize at the end of the day, everyone is going to have their opinion on your life, more and more so as you go along," she told Interview magazine recently.
"As long as you're getting to work and be a part of it—still having fun, learn to just not sweat it so much and keep doing the things you love. Keep going on hikes, keep having your friends in your life, keep that downtime sacred as well because as hard as you work in any job, it's really nice to have the relaxing de-stressors. Stress is the worst thing. That's the ultimate demise of any good thing."