She’s always up for a charitable cause, and last night Michelle Williams was spotted out at the Fresh Air Fund benefit gala.

The “Brokeback Mountain” babe looked beautiful as she arrived at the Tavern on the Green in NYC’s Central Park, sporting a white dress with gold beading.

Michelle was honored at the event, picking up an America Hero award.  And as she accepted her trophy, Williams spoke of the love she has for her little girl Matilda.

Also in attendance was charity supporter Mariah Carey and her husband Nick Cannon.  The Fresh Air Fund provides free summer vacations for inner-city children.

Michelle Williams