monteithrehab230.jpgCory Monteith has checked into rehab, his rep confirms to People.

The Glee star "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," his rep said in a statement.

The Canadian actor has been open about his past struggles with drug abuse, revealing in a 2011 interview with Parade magazine the extent of his problem.

"I burned a lot of bridges. [I did] anything and everything, as much as possible... I had a serious problem," he confessed to the mag.

So how is girlfriend Lea Michele handling the news?

"I love and support Cory and will stand by him through this. I am grateful and proud he made the decision," she tells People.

We're rooting for you, Mr. Monteith!