Syfy has cast 1980s pop-star rivals Debbie Gibson and Tiffany in one of the network's signature Saturday night original movies.

Yes, they will fight.

The network promises an epic battle between the former teen pop idols, who will star in "Mega Python vs. Gatoroid."

Gibson will play a fanatical animal-rights activist who frees illegally imported exotic snakes from pet stores, sending them into the Everglades, where they grow to mega sizes. Tiffany will play an overzealous park ranger who uses dangerous methods to save endangered alligators.

In the script, the pair brawl at a party, then take matters outside into the swamp.

Both singers previously have been cast in Syfy originals but never have appeared together.

Executive vp programming and original movies Thomas Vitale said the idea was hatched by Syfy's creative team after Tiffany visited their office and said she always has wanted to work with Gibson; the media often portrayed the duo as rivals during their MTV years.

"They loved the idea of taking this perceived rivalry and having some fun with it," Vitale said. "The catfight on 'Dynasty' was a seminal TV moment and it's time to re-create that for a new generation."

"Gatoroid" is produced by the Asylum. Mary Lambert ("Pet Sematary") will direct, marking the first time a woman has helmed a Syfy creature feature. Naomi Selfman ("Evil Eyes") will pen the script. The project will begin shooting this month and air next year.

"I know that pop culture fanatics have been dying for Tiffany and me to collaborate for the past 24 years!" said Gibson in a statement. "What better way to do it than by battling each other in a campy romp through the Everglades?"

"Only in my dreams have I been able to have a catfight with Debbie Gibson...until now!" Tiffany said. "This is soo MEGA cool!"