"The biggest heart and most beautiful smile.. In all of our hearts.. We love you so. Happy Birthday," she tweeted along with a photo laughing with her Glee costar.
Monteith died at age 31 in July 2013 after an overdose of cocaine and alcohol in his hotel in Vancouver, Canada. Since his death, the Glee cast has honored Monteith with a tribute episode, "The Quarterback," and Michele released her debut album with several songs dedicated to her late boyfriend.
“I only have happy memories of Cory. He was not his addiction—unfortunately, it won," she admitted in the April 2014 cover story for Seventeen Magazine. "But that wasn’t who he was. Cory made me feel like a queen every day. From the minute he said, ‘I’m your boyfriend,’ I loved every day, and I thank him for being the best boyfriend and making me feel so beautiful.”