Cory Monteith has been written out of Glee's season finale after checking into rehab. The 30-year-old actor - who plays Finn Hudson in the comedy-drama show "voluntarily" admitted himself into a facility for "substance addiction" and show bosses have decided to write him out of the finale with his absence explained.

Twentieth Century Fox, which makes Glee has also come out in support for his recent ordeal, releasing a statement saying, "Cory is a beloved member of the Glee family and we fully support his decision to seek treatment. Everyone at the show wishes him well and looks forward to his return."

A spokesperson for Cory revealed the actor - who is dating his co-star Lea Michele - had taken steps to deal with his addiction by voluntarily admitting himself to a treatment facility. The representative said, "[Cory] has voluntarily admitted himself to a treatment facility for substance addiction. He graciously asks for your respect and privacy as he takes the necessary steps towards recovery."

Lea has vowed to stand by the hunk during his time in rehab and admitted she is "grateful and proud" of him for checking into the facility. "I love and support Cory and will stand by him through this. I am grateful and proud he made this decision," she added.

Cory previously revealed he entered rehab when he was just 19 years old and encouraged others to seek help. Speaking in an interview in 2011, he said, "I don't want kids to think it's OK to drop out of school and get high, and they'll be famous actors, too. But for those people who might give up: Get real about what you want and go after it."