Beauty is pain!
The reality star posted a Snap of her legs after the event, and they looked like an annoyed cat had gone on the attack.
The Pitch Perfect star looked plum-tastic in an above-the-knee Carolina Herrera dress and gray zippered clutch.
Her sweet yet sexy secretary look was completed with black Marissa Webb shoes and a simple Lorraine Schwartz tennis bracelet.
The 27-year-old usually looks like a teenager, but Anna's ensem is so mature, she actually almost looks her age here!
[Image via Ivan Nikolov/WENN.]