Is tweeting while you're in class allowed? It looks like Puerto Rican pop sensation Ricky Martin is breaking the rules. Martin, 40, tweeted a photo of himself with the Glee kids on the set of the show, along with the message "First Day!" on Friday. Cory Monteith, Chris Colfer, Naya Rivera and Damian McGinty are all pictured, as well as Matthew Morrison, who plays Spanish teacher and glee club coach Will Schuester on the show.

Martin will play a dreamy Spanish teacher (a rival to Mr. Schu?) and will undoubtedly perform some hot numbers on the musical TV show, not to mention some of his signature dance moves.

But the former Menudo member wasn't the only one on set sending pics into the Twittersphere. Lea Michele tweeted a shot of herself and Martin, along with the message, "I’ve known Ricky since I’m 8 years old! He was in Les Mis on Broadway with me in 1996! Crazy huh?!”

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