Katy Perry and Alison Williams, UNICEF Ball

Katy Perry and Allison Williams lit up the UNICEF Snowflake Ball

Katy Perry, Selena Gomez and Uma Thurman were just some of the stars who attended the UNICEF Snowflake Ball, with Gomez in particular looking keen to put reports of her and Justin BIeber breaking up and then perhaps getting back together on the back burner for the evening. Perry looked stunning, as did TV actress Allison Williams, but Gomez stole much of the limelight, putting on a smiley face as she donned sparkly black number and chatted freely with the room at 42nd Street.

Selena Gomez, UNICEF Ball

Selena Gomez reminded Justin Bieber just what he was missing at the UNICEF Ball

Indeed Gomez and Perry had a good chat with one another, Perry clearly a fan of the 20 year-old's dress and Gomez herself definitely a fan of Perry as well. Justin Bieber wasn't in attendance, thankfully, though a host of stars were, including Uma Thurman, The Today Show's Bryant Gumbel and Matt Lauer, Brokeback Mountain and The Open Road's Kate Mara, All My Children's Kelly Ripa, and Tea Leoni. It wasn't just actors in attendance either, with legendary singers Tony Bennett and Harry Belafonte also turning up. 

Harry Belafonte, Tony Bennett, UNICEF Ball

Two singing legends, Harry Belafonte and Tony Bennett share a joke

Uma Thurman, UNICEF Ball

Uma Thurman never fails to impress fashion-wise; the actress kept in keeping with the style of the evening, donning some dark colours

This was the 8th annual edition of the UNICEF ball, held in order raise funds and awareness for children struggling in life the world over. It's part of a busy festive season in New York for the celebs, with many more black tie events on the horizon over the next few weeks. 

 Kate Mara, UNICEF BallSelita Banks, UNICEF Ball

Battle of the red dresses: [Left] Kate Mara and [Right] model Selita Banks bucked the navy trend of the evening

Kelly Ripa, UNICEF Ball

Kelly Ripa was another whose outfit impressed