How did the stars ring in the New Year?

(CBS) Stars celebrated the beginning of 2012 with lavish parties, celebrations and romantic getaways.

"Real Housewives" star Kim Zolciak hosted a party at Beauty and Essex in New York, while Lady Gaga joined New York City Mayor Michael Bloomberg for the ball drop in Times Square. Stevie Wonder performed at the Cosmopolitan Hotel in Las Vegas.

How did the other stars celebrate?

Beyonce & Jay-Z: There were reports that Beyonce was going to give birth last week. That clearly didn't happen yet because she was spotted dining with her husband Jay-Z at Buttermilk Channel in Brooklyn on New Year's Eve. They "shared a cozy meal for two," a source told Us Weekly.

Katy Perry: The pop star didn't let her divorce from Russell Brand cramp her style. According to the New York Post, Perry partied at Soho House in West Hollywood on New Year's Eve. An insider said, "Katy was in a private room with a group and she seemed to be in a great mood. She spent most of the night dancing and laughing with friends.

Kim Kardashian: The reality star spent Saturday night celebrating with her mother Kris Jenner at Tao Las Vegas. Kardashian seems to be in good spirits too, tweeting, "Who else is soooo ready to let go of 2011 and have the best 2012 ever!"

Jennifer Lopez: The "American Idol" judge snuck away to Miami for the weekend with her dancer beau Casper Smart, reports People. "They were very sexy with each other, dancing and bouncing around and making out," a source said.