Lindsay Lohan and Rex Lee are seen here as Nationals judges. They guest-starred on Glee.
Added:
This bus sign says it all. The group takes off for Chicago on the aptly-titled "Nationals."
Added:
Give it up for Wemma! Will and Emma are on the path to marriage in this still from the episode "Nationals."
Added:
Will, Emma and Sue are off to Nationals. This is a photo from the aptly titled Glee episode, "Nationals."
Added:

Glee Season 3 Episode 21 Quotes

I know, I'm sorry. I always go to the yelling place. I have rage.

Santana

With Monique down for the count, we are entering The Hunger Games of show choir competition without one of our most powerful voices.

Sue