This Adorable Baby Grew Up to Be Which Sexy Glee Guest Star? 2 of 2 Prev Autoplay View Gallery Tweet November 30, 2012 at 01:05PM EST by Beth Douglass full size Credit: Twitter It’s Ricky Martin! The sexy Latin pop star, who guest-starred as Spanish teacher David Martinez on Season 3, Episode 12: “The Spanish Teacher,” tweeted this adorable photo of himself on November 28. “My first birthday. Mi primer cumpleaños” he wrote. Too cute!