From WENN.com

The actor, who played Mr. Big in both the TV show and the movie series, is hosting a benefit event for the Rainforest Action Network at his Manhattan bar Cutting Room on Sunday (17Feb13).

Singer/songwriter Shawn Colvin will be performing at the party and guests will be invited to take part in a fundraising auction, which will include a number of interesting items for Sex and the City fans.

Noth tells the New York Daily News, ""Shawn Colvin is going to be playing and we will auction off Sex and the City goodies like Sarah Jessica Parker's Manolo Blahniks (shoes) and the script from the finale, signed by me.""