Check out the video below!
Is that not the most heart-warming video you've ever seen?
These students from the LA School for the Deaf just thought they were attending another focus group...
When suddenly, Marlee Matlin showed up!
The looks on the students' faces were priceless!
We didn't think they could get any more excited...
Until they were told that they would get to watch the premiere episode of the final season of Switched At Birth!
And THEN they were surprised by more Switched At Birth stars!
Katie Leclerc, Vanessa Marano, Constance Marie, and Lucas Grabeel all showed up!
The fans couldn't believe it!
The cast are super excited about the final season.
And Marlee Matlin promised fans that they will not be disappointed!