Glee is temporarily lifting its moratorium on stunt casting, and with good reason.

The Fox phenom has officially closed a deal with Ricky Martin to guest star early next year, sources confirm to TVLine exclusively.

The bon-bon shaker extraordinaire will play what a Glee insider is calling “the hottest Spanish teacher ever in the history of Ohio.”

And a musically inclined one at that.

I’m told Martin’s scalding instructor will headline two big musical numbers in the episode, which is slated to air in late January.

Glee Spoiler Alert: Somebody’s Getting Engaged!

After wrapping Glee, Martin is off to New York to begin rehearsals for his role as Che in the Broadway revival of Evita (opening in April 2012).

The Glee stint marks Martin’s most high profile acting gig since his two-year run on General Hospital in the mid-90s.

Thoughts? Which McKinley pupil do you think will sport the biggest crush on the new hot prof? Care to predict which musical numbers Martin will perform? Hit the comments!