ET's Style Editor, Marisa Runyon, runs down the stars who made fashion history this year.
See who else wished the pop songstress a happy birthday!
The model-actress opened up to 'Instyle' about her iconic arches and what keeps her happy.
Princess Eugenie and Jack Brooksbank tied the knot in front of a slew of famous friends.
These A-listers came close to upstaging the bride with their fabulous ensembles.
The model-turned-actress had a rare appearance on the catwalk for Balmain.
The model and 'Pretty Little Liars' star were spotted kissing last week.
The two were spotted in London!
The supermodel and the former 'Pretty Little Liars' star were spotted smooching at London's Heathrow Airport on Aug. 14.
The pair was first linked back in May!
ET breaks down all the best headpieces from fashion's biggest night on the red carpet.
The friends were previously spotted slow-dancing and sharing a kiss back in March.
The pair slow-danced and shared a smooch after dinner with Macaulay Culkin and Brenda Song on Thursday.
Paris Fashion Week kicked off on Tuesday with a slew of A-listers!
