The CraftyGirls, Sing Harlem Choir, Scientist Saad Sarwana, and Theremin player Rob Schwimmer.

It's gonna be a great Wonderama weekend, with slime, cool science, weird instruments, and an incredible music performance. Join David and the gang, along with The CraftyGirls, scientist Saad Sarwana, Theremin player Rob Schwimmer, and Sing Harlem Choir.

The show’s own verdict is on its page.