Tonight's acts include a wind-blown opera singer, a twisty contortionist with a sweet tooth, a knife-juggling unicyclist and hoverboard-riding musicians.

Celebrity judges Rob Riggle, Ed Helms, and Regina Hall are set to praise, critique and gong performers, including a water-bottle ballet, shadow puppetry, a dancer with four legs, and a man who spits and does tricks with ping pong balls.

Celebrity judges Chris Sullivan, Natasha Leggero, and Mark Cuban are set to praise, critique and gong performers, including a motorcycle-riding dog, a magical contortionist, a grim reaper with a comic flair, and a woman who does tricks with her super long tongue.

Contestants include a not-so-magical magician

Celebrity judges Alyson Hannigan, Will Arnett, and Lil Rel Howery are set to praise, critique and gong performers, including a herd of dancing cows, terrifying tap dancing sisters, a multitalented bunny, and a hula-hooping zombie.

Celebrity judges Selma Blair, Ken Jeong and Yvette Nicole Brown are set to praise, critique and gong performers including flexible contortionists, dancing unicorns, pogo stick tricks and a tap dancer with beer cans on his feet.

Celebrity judges Jimmy Kimmel, Will Arnett, and Anthony Anderson are set to praise, critique and gong performers, including an operatic construction worker, a man balancing a flaming grill on his chin, a death-defying family circus, and a mother and son hip-hop team.

Celebrity judges Jason Sudeikis, Sharon Osbourne, and Brad Paisley are set to praise, critique and gong performers, including a father-daughter rap duo, a young contortionist who can shoot a bow and arrow with her feet, an acrobatic man and his dog, and a double whip-cracking harmonica player.

Celebrity judges Tony Hale, Will Arnett, and Regina Hall are set to praise, critique, and gong unusually talented and unique performers, including a dog who definitely can be taught new tricks, a unicyclist who climbs to new heights, a human hamster who rolls inside a giant wheel, and the return of The Virtuoso, who plays his odd instrument… in space.

Tonight's acts include a quick-change magic act, a hula-hooping marvel who travels on rings, a drummer who can literally drum on anything and a group of waterless swimmers.