Is there anyone more recognizable or lovable than Elmo?
Well, maybe Cookie Monster because you know how much we love his ode to Carly Rae Jepsen called "Share Me Maybe!"
But back to business! Zac's just one of the many big name stars confirmed to guest star on the upcoming 43rd season of Sesame Street when it comes back on September 24!
Other major stars coming to hang out on one of the most famous streets in the world include Halle Berry, Joseph Gordon-Levitt, Maya Rudolph, Dax Shepard, Ed Helms, Kristen Bell and tons more!
Common, Train and Colbie Caillat are coming by to sing with the gang this season too.
Be honest, don't you want to tune in?
It's the bomb: Check out some hilarious photobombs right here!