[All images by Billy Farrell for PMc] The Plaza Hotel really has gone to the dogs, hasn't it? Katherine Heigl and Isaac Mizrahi were joined by Philly the Dog at ASPCA's Bergh Ball last night at last night's ASPCA Bergh Ball.

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The event was a black tie affair; even the dogs were dressed in their best. The women wore long gowns, and the men looked dapper in their bow-ties, and tuxes. Steve Tanger added a little flair with a plaid waist band.

Guests enjoyed dinner and champagne as Ed Sayres, the President of the ASPCA, spoke about the program. On the dinner tables were paper masks of dog and cat faces, which everyone had fun posing with.  The rest of the evening was spent dancing, and enjoying the night.

Katherine Heigl was honored with the President's Award, a welcome boost to her much maligned public image.

Joining Heigl were model Maggie Rizer, Anisha Lakhani, Alexandra Lind Rose, Somers Farkas, Liliana Cavendish, and Katherine's mom.

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Ed Sayres, Anisha Lakhani, Kimberly Guilfoyle, Maggie Rizer

Alexandra Lind Rose, Mark Gilbertson, Barbara Regna

Somers Farkas, Michelle Gradin, Kim White, Laura Barket, Linda Lambert, Margo McNabb Nederlander

Adam Zucker, Arielle Greenberg, Benjamin Lambert, Linda Lambert

Allison Aston, Alexandra Lind Rose

Angelica Compagno, Liliana Cavendish

Amy Cosman, Steve Tanger

Anisha Lakhani, Spirit the Dog

Barbara Regna, Peter Regna, Stephanie Kamfar, Charlene Nederlander, Margo McNabb Nederlander, James Nederlander Sr.

Elke Gazzara, Jean Shafiroff, Margo Langenberg, EdMundo Huerta, Carolina Portago

Chele Chiavacci, Jonathan Farkas

Francine LeFrak, Rick Friedberg

Jay Aston, Melanie Fascitelli, John Auerbach, Andrew Black

Harry Slatkin, Liliana Cavendish, Kurt Wolfgruber, Kim White

Jennifer Kennedy, Michelle Gradin

Nancy Heigl, Katherine Heigl

Lucy Suarez, Phil Suarez, Melissa Foss, Kris Zdyb

Marcia Levine, Pierre Levai, Mia McDonald, Angelica Compagno

Melissa Morris, Chappy Morris, Mary Puris

Ron Delsener, Meredith Belden

Cena Hackler-Jackson, Liz Walker, Julie Kasle, Sara Gilbane Sullivan

Lucia Hwong Gordon, Stephanie Kamfar, Laura Barket, Chrissy Carter