'Glee': Ricky Martin arrives on set - photos Published Jan 6 2012, 10:22 GMT | By Catriona Wightman Share Share Ricky Martin has started work on Glee.The musician recently signed up to play a Spanish teacher in the Fox show and has now begun filming scenes.Martin tweeted a photo of himself with the cast on set, adding: "First day!" Glee star Lea Michele also took to Twitter to express her excitement about Martin's guest role."I've known Ricky since I'm 8 years old [sic]!" she tweeted. "He was in Les Mis on Broadway with me in 1996! Crazy, huh?"Michele also uploaded a photo with Martin on set, saying: "He's seriously the sweetest and such a great fit for our show!" Helen Mirren, Pitbull and Gloria Estefan are among the other guest stars who have been linked to parts on Glee.The show returns with a new episode on January 17 at 8/7c on Fox. Watch the latest US TV shows - contract free! Watch now Share ShareMore US TV Glee Lea Michele Ricky MartinPrevious 'Jersey Shore' season premiere recap: 'Hurricane Situation' Next 'X Factor' Melanie Amaro: 'Simon Cowell will continue to be my mentor'