Cory Monteith Rehab: What Is The 'Glee' Star Addicted To?

"Glee" star Cory Monteith, 30, entered rehab recently. The 30-year-old actor best known for portraying Finn Hudson on FOX's "Glee" told CNN through a personal representative that he is addicted to controlled substances.

In a statement, the "Glee" production company, 20th Century Fox TV said that they "fully support" Cory Monteith's "decision to seek treatment" for his drug abuse. Monteith previously sought rehabilitation at age 19 for a similar addiction. MTV reported that Monteith said in a 2011 interview that he began drinking alcohol and smoking cannabis at age 13, landing in numerous schools and programs for troubled youth.

Cory Monteith reportedly told Parade magazine that he was "out of control" at the time. The "Glee" star said he was worried that other aspiring teens would see his life path as the right way to popularity.

"I don't want kids to think it's okay to drop out of school and get high, and they'll be[come] famous actors too," Monteith said.

Monteith's on screen beau and real life girlfriend Lea Michele tweeted that she was "feeling so grateful" that he was seeking help for his problem.

Cory Monteith was born in 1982 in Calgary, AB, Canada and grew up in Victoria, BC. Before he became a recognized actor, Monteith was a greeter at a Vancouver area Wal-Mart store, slowly gaining recognition in Canadian film circles. Cory Monteith has played the character of Finn Hudson since the "Glee" premiere in 2009. Monteith's character, Hudson, will reportedly be written out of the script for this season's last two episodes of "Glee" yet to be filmed.