VIDEO : Lea Michele Writes Touching Tribute to Cory Monteith

Today would have been Cory Monteith's 33rd birthday, and in his honor Lea Michele took to Twitter to share a heartfelt message about the late actor. Alongside a photo of him playing the drums, Michele wrote, "I know you're serenading everyone right now?We love you Cory! Happy birthday." Monteith passed away two years ago on July 13 and was found in his hotel room in Vancouver. The coroner ruled that the actor died of an overdose, officially referred to as a mixed drug toxicity, with heroin and alcohol being among the substances found in his body.??