How fierce!

Project Runway winner Christian Siriano will guest star on ABC's Ugly Betty.

The episode will air during May sweeps week.

According to an ABC statement, Siriano, 22, will cross paths with "Mode's own hot tranny mess" Alexis Meade (Rebecca Romijn).

Runway judge Nina Garcia will also have a cameo.

Siriano won the Bravo reality show earlier this month.

"This won't be the last of Christian Siriano," he vowed at the time. "I mean, people need to see more of the fierceness."

source: usmagazine.com