"I can't wait to party with my New York City fans! Make Friday a sick day, because this is going to be a crazy fun time," says Kaylani. "It's going to be so much fun! The Big John Birthday Bash is legendary, so my fans have to come and see what the fuss is all about," adds Kirsten.
The two stars will be available for photographs and autographs, and plan on partying with all who attend.
Headquarters is located at 552 West 38th Street (between 10th and 11th Avenues) in New York City. For more information, including VIP reservations, visit or call the club directly at 212.967.4646 . Headquarters can also be followed on Twitter at .