The only thing more fun than trying to guess who's who [1] on The Masked Singer [2] is guessing what crazy costumes will appear on each new season! Every year, it seems like the show's costume department truly outdoes itself with increasingly elaborate, wacky, and sometimes hilarious costumes to conceal the identities of the celebs behind the masks [3]. As the fourth season gears up to start officially on Sept. 23, we're taking a look back at all the incredible characters [4] that have graced the stage so far. We've moved long past the days of just animal characters — now there are singing robots, monsters, and bizarre but glam creatures. Keep reading to see every single costume from The Masked Singer [5] and the celebrities behind each mask!

Season 1: The Hippo

Season 1: The Hippo, aka Antonio Brown

Season 1: The Pineapple

Season 1: The Pineapple, aka Tommy Chong

Season 1: The Deer

Season 1: The Deer, aka Terry Bradshaw

Season 1: The Poodle

Season 1: The Poodle, aka Margaret Cho

Season 1: The Unicorn

Season 1: The Unicorn, aka Tori Spelling

Season 1: The Raven

Season 1: The Raven, aka Ricki Lake

Season 1: The Alien

Season 1: The Alien, aka La Toya Jackson

Season 1: The Lion

Season 1: The Lion, aka Rumer Willis

Season 1: The Rabbit

Season 1: The Rabbit, aka Joey Fatone

Season 1: The Bee

Season 1: The Bee, Gladys Knight

Season 1: The Peacock

Season 1: The Peacock, aka Donny Osmond

Season 1: The Monster

Season 1: The Monster, aka T-Pain

Season 2: The Egg

Season 2: The Egg, aka Johnny Weir

Season 2: The Ice Cream

Season 2: The Ice Cream, aka Tyler "Ninja" Blevins

Season 2: The Panda

Season 2: The Panda, aka Laila Ali

Season 2: The Eagle

Season 2: The Eagle, aka Dr. Drew Pinsky

Season 2: The Skeleton

Season 2: The Skeleton, aka Paul Shaffer

Season 2: The Penguin

Season 2: The Penguin, aka Sherri Shepherd

Season 2: The Black Widow

Season 2: The Black Widow, aka Raven-Symoné

Season 2: The Ladybug

Season 2: The Ladybug, aka Kelly Osbourne

Season 2: The Flower

Season 2: The Flower, aka Patti LaBelle

Season 2: The Butterfly

Season 2: The Butterfly, aka Michelle Williams

Season 2: The Tree

Season 2: The Tree, aka Ana Gasteyer

Season 2: The Thingamajig

Season 2: The Thingamajig, aka Victor Oladipo

Season 2: The Leopard

Season 2: The Leopard, aka Seal

Season 2: The Flamingo

Season 2: The Flamingo, aka Adrienne Bailon

Season 2: The Rottweiler

Season 2: The Rottweiler, aka Chris Daughtry

Season 2: The Fox

Season 2: The Fox, aka Wayne Brady

Season 3: The Robot

Season 3: The Robot, aka Lil Wayne

Season 3: The Llama

Season 3: The Llama, aka Drew Carey

Season 3: Miss Monster

Season 3: Miss Monster, aka Chaka Khan

Season 3: The Elephant

Season 3: The Elephant, aka Tony Hawk

Season 3: The Mouse

Season 3: The Mouse, aka Dionne Warwick

Season 3: The Taco

Season 3: The Taco, aka Tom Bergeron

Season 3: The Bear

Season 3: The Bear, aka Sarah Palin

Season 3: The Swan

Season 3: The Swan, aka Bella Thorne

Season 3: The T-Rex

Season 3: The T-Rex, aka JoJo Siwa

Season 3: The White Tiger

Season 3: The White Tiger, aka Rob Gronkowski

Season 3: The Kangaroo

Season 3: The Kangaroo, aka Jordyn Woods

Season 3: The Banana

Season 3: The Banana, aka Bret Michaels

Season 3: The Astronaut

Season 3: The Astronaut, aka Hunter Hayes

Season 3: The Kitty

Season 3: The Kitty, aka Jackie Evancho

Season 3: The Rhino

Season 3: The Rhino, aka Barry Zito

Season 3: The Frog

Season 3: The Frog, aka Bow Wow

Season 3: The Turtle

Season 3: The Turtle, aka Jesse McCartney

Season 3: The Night Angel

Season 3: The Night Angel, aka Kandi Burruss

Season 4: The Broccoli

Season 4: The Dragon

Season 4: The Giraffe

Season 4: The Gremlin

Season 4: The Jellyfish

Season 4: The Lips

Season 4: The Mushroom

Season 4: The Popcorn

Season 4: The Snow Owls

Season 4: The Squiggly Monster

Season 4: The Sun

Season 4: The Whatchamacallit