Alicia Keys was a scene-stealer in chic leather pants as she lit up Empire State Building to celebrate the anniversary of the ...

Beyond Keys, notable attendees included Katy Perry, Kate Hudson, Christina Aguilera, Lily Collins and Glenn Close, among others.

Alicia Keys meant business last night as she stepped out to the ... Chunky diamond earrings and silver wire-rimmed sunglasses took her look to the next level, making it feel more cool than costumey.

Alicia Keys meant business last night as she stepped ... Chunky diamond earrings and silver wire-rimmed sunglasses took her look to the next level, making it feel more cool than costumey.