Cory Monteith, Lea Michele

Lea Michele tweeted a loving tribute to her late boyfriend Cory Monteith in honor of his birthday.

"The biggest heart and most beautiful smile.. In all of our hearts.. We love you so.. Happy Birthday," the Glee actress posted alongside a photo of the couple laughing together.

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Monteith would have been 32 Sunday. The former Glee star died in July 2013 from a toxic mixture of heroin and alcohol. His character, Finn Hudson, was written out of the series in the touching, emotional episode "The Quarterback" (watch it here). In February, Michele released a tribute song in his honor.