Going to the gym has never been so glam.

Scenesters, fashionistas and their downtown-like flocked to David Barton's new gym on Manhattan's Astor Place Monday evening to celebrate the holiday and bring joy to hundreds of little kids.

The fabulous party also served as a toy drive for several area hospitals and children's charities, as admission was restricted to invited guests who arrived with an unwrapped gift in hand.

"The last time we did this, we gathered 20,000 toys," David Barton told StyleList. "Every year, we get more. So many kids won't have a Christmas unless someone goes out and buys some toys. People feel good giving something."

Barbie, G.I. Joe and Hello Kitty were out in huge numbers. Marc Jacobs arrived with two shopping bags bearing his name – one black and one white – stuffed with plush toys. Narciso Rodriguez hurried in with his haul of loot, admitting to StyleList there was much more. "We do this in the office too – we have a mountain of toys."

Hair guru Stephen Knoll offered StyleList his best advice for holiday hair: "Curl it and wear it up or down. As long as it has a lot of movement to it, it's happy holiday hair, this year especially, more than ever."

"Launch My Line" contestant Patrick McDonald was decked in festive red and plaid and was basking in his newfound fame. "Today I left my apartment in the East Village and four construction workers walked towards me. I thought, oh my God, I'm in riding boots and patent leather and plaid and a red hat. What are they thinking? They said, 'You're the guy from TV. Can I take a picture on my cell phone to give to my wife? She loves you.' It's so nice."

The toy requirement proved to be quite a windfall for the Walgreen's down the block. With mountains of toys in its windows, so many party-goers dashed in to pick up their offerings that there was a line out of the store's door.