03/03/2011 11:27 am ET Updated May 25, 2011

CHANEL/Blake Lively Dinner, 'Happythankyoumoreplease' Premiere (PHOTOS)

NYC blossoms in such pleasant and mild weather. Case in point: last night was a busy and star-studded one! What happened?

The Cinema Society & Tommy Hilfiger hosted a screening of 'happythankyoumoreplease', a Sundance rom-com fave, at Top of The Standard Hotel. The film's star Malin Ackerman and other beautiful people showed up.

The band Tennis played a great show at Bowery Ballroom.

CHANEL hosted a dinner for Blake Lively, and had guests like Andre Balazs, Hope Atherton, Waris Ahluwalia and Justin Long (who played with Ahluwalia's beard).

What else? Whoopi stopped by the open casting for the new Broadway play 'Sister Act' to school the girls on how it's done -- Whoopi-style. Even The Gute (Steve) made a guest appearance on the town last night.

Check out what you missed!