"Glee" star Cory Monteith has checked himself into rehab for substance addiction, a rep for the 30-year-old actor announced this morning.
Monteith's rep told PEOPLE mag, "[Monteith] 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."
Monteith, who stars as Finn Hudson on the Fox show, was in rehab once before when he was 19. He talked about it back in 2011, saying, "I don't want kids to think it's okay to drop out of school and get high, and they'll be famous actors, too."