On "The Masked Singer" Season 12 Episode 4 "Sports Night," a celebrity was revealed as Dust Bunny. Here's who was under the mask.

Group B kicks off with five new mysterious celebrities on The Masked Singer as Joel McHale and Nikki Glaser join the madness on "Sports Night" as sideline reporters before one epic legendary reveal that leaves the panel's jaws hanging open.

Warning: This article contains spoilers for The Masked Singer season 12, episode 4, "Sports Night." Sports Night on Wednesday's episode of The Masked Singer quickly became Comedy Roast Night. Thanks to guest commentators Joel McHale and Nikki Glaser,

There are certain Masked Singer contestants that you just know you’ll never forget for years to come, and Dust Bunny is certainly one of them. The judges were so confused when the unique critter performed on the stage for the very first time.

Group B has officially been introduced on “The Masked Singer.” Five new contestants made their debut during “Sports Night” on the Oct. 16 episode. The show kicked off with Robin Thicke and Rita Ora performing a rendition of “Rock You Like A Hurricane” by the Scorpions.

A new season of Masked Singer means a new slate of celebrities shrouded by elaborate masks and a Twitter feed full of guesses from viewers watching at home. And we're here to help you figure out the famous faces beneath these wilder-than-ever new masks.