Lea Michele fights back tears in emotional Glee tribute episode clip

fans can now see a sneak peek of the emotional tribute episode in honour of

which airs in the US on 10 October.The 30-second clip shows the cast pulling together to create a memorial for Cory's character Finn, while a tearful

sings the moving Bob Dylan track

in the background.The characters gather around Finn's locker to leave heartfelt notes and gifts in memory of the quarterback.

"I mean, the interesting thing about that show is that those actors and the creators really, really loved Cory," he added. "The episode is called

, and you know Cory really was that, to that group of people and to me particularly. There was nobody on that crew that did not like Cory.""I've never seen a crew that you can't continue shooting because they've left the room sobbing. It was very hard...It was rough. It was very rough. It was very rough with Lea Michele... but I'm very proud of it."I think the performances are quite stunning. People still are not over it. It's still very, very difficult."The episode which airs on 10 October on Fox includes several ex-cast members including Amber Riley who plays Mercedes and Mark Salling who plays Puck.