'Glee' famer Cory Monteith isn't gay, he's straight -- but that doesn't mean he's narrow-minded. In a new PSA, Monteith, who plays Finn on the hit FOX show, reaches out to gay guys to tell them to be who they are.

"So, maybe you like to play football. Maybe you like to sing and dance. Maybe you like both, maybe you don't like either," Monteith starts in the public service announcement. "It doesn't matter! Just be yourself. Just be you, 'cause that's good enough for me."

Monteith is speaking out on behalf of Straight But Not Narrow, as "guys talking to guys about guys who like guys." The organization asks the question, "Straight, gay, and everything in between ... Why does it matter?" to encourage young straight men to push a positive influence on young gay men, showing them that no one should really care what your sexual orientation is, because we're all the same.

With Cory Monteith on their team, we think SBNN's message will spread faster than they ever could have hoped! Visit WeAreSBNN.com for more information and to see how you can get involved.

Watch Cory Monteith's Straight But Not Narrow PSA