The actress attended the Tate Americas Foundation Artists Dinner at the Skylight Studios in New York on Wednesday night, and paired her new 'do with an equally adventurous high-necked white minidress with batwing sleeves.
Strappy metallic heels completed the makeover, and we thought she looked pretty cool.
Anne took the time to pose for pics with the likes of Alexa Chung, and Sarah Jessica Parker, who was gorgeous in a whimsical maxi dress.
What do you think of the new 'glam Anne'?
See more slebs cosying up for the camera: