Miranda Kerr is hosting a Halloween party Monday night on the rooftop of new hot spot Catch, while Heidi will hold it down at PH-D inside the Dream Downtown.
How will the spooky soirees stack up?
Well, Heidi will have some time to practice, as she's hosting another costume bash this weekend at Tao in Las Vegas.
A source tells me Miranda will be dressed as a circus ringleader for her soiree. While Heidi normally keeps her elaborate costumes top secret before her big bash, she posed for fittings in two costumes, including a hairy monkey and a Bodies exhibit cadaver.
But Heidi herself says she's saving the primate one for the Big Apple.
Seal's wife will serve HobNob wines and SmartWater at her fete, and it's safe to say cuisine at Miranda's party will include sushi and seafood, which is Catch's specialty.
So is there any bad blood between the ladies, who both worked the runway for Victoria's Secret in years past?
Nah. "A little healthy competition is good!" a party source tells me.