Allison Williams enjoyed her second night out in a row at the UNICEF Snowflake Ball held at Cipriani 42nd Street in New York City yesterday evening.

Like Katy Perry, Allison also wore a Naeem Khan Spring 2013 gown.

The ‘Girls’ actress selected an aqua lace long-sleeve gown with shimmering silver appliqués.

Her flawless look was simply enhanced with a Bulgari silver ring and Bulgari diamond stud earrings.

Tumbling tresses, kohl-rimmed eyes which made her baby blues pop and pink glossy lips completed her look.

Credit: Getty