Kim Zolciak Fangirls Hard While Meeting Erika Girardi for First Time on 'WWHL'

"I'm obsessed with her," Kim said while complimenting Erica's music. "My kids, too... you're just beautiful, we're huge fans of yours."

"I'm like starstruck," Kim told Andy Cohen before another surprise guest showed up for the "WWHL" 12 Doorbells of Christmas special.

One by one, some of the year's biggest Bravo reality stars trickled on in to the Bravo Clubhouse, including "Real Housewives of New York" star Sonja Morgan, "Real Housewives of New Jersey" star Margaret Josephs and "Real Housewives of Potomac" star Gizelle Bryant. Behind the bar was none other than SUR's finest, Jax Taylor.

When Andy asked Kim if she's been enjoying being back on "RHOA," her new bestie, Erika, chimed in: "No."

"Yes!" Kim replied laughing. "It's totally a different vibe being out of the house with girl friends and away from the kids and the hubby."

"Because you don't leave the house much?" Andy said.

"Not unless I'm being paid," Kim replied. "I have six kids, baby, like I'm not gonna leave them unless there's a check."

Then Frosty the Shademan showed up to pressure the ladies into talking some smack about some of their co-stars.

"Kim, say three nice things about Kenya Moore," the animated snowman said.

"Ummmmm...hair, hair, hair," she said reluctantly.

Sonja then "hopped on Andy's sleigh" and performed a sultry caburlesque song before admitting during a holiday edition of Never Have I Ever that she's had a one-night stand with someone she met at a holiday party.