The former *NSYNC boyband member surprised fans on the new series by performing while dressed up as the Rabbit, and made it all the way to the semifinals before he was voted off the show, on which celebrities don elaborate costumes to hide their real identities as they face off in one-on-one rounds, with a panel of judges and audience members all voting for their favourites.
Now Fatone has commemorated his time on "The Masked Singer" with a big piece of skin art, complete with his Rabbit's straightjacket-style shirt.
He initially teased fans about the new tattoo in a post on Instagram, sharing a photo of himself smiling as he laid face-down, while tattoo artist Zoey Taylor worked on the secret design.
"It's that time again !! Woo hoo tattoo !!! Any guesses ?" he wrote beside the image.
He has since revealed the detailed Rabbit design on the back of his right calf, and praised Taylor for her fine work.
"@zoeytaylor did a KILLER job on the rabbit !" he captioned the latest set of pictures. "She is def (sic) one of the best! Go see her @thewarrentattoo".
Fatone lost out on "The Masked Singer" title to hip-hop star T-Pain, who had performed as the Monster. Donny Osmond placed second as the Peacock, while Gladys Knight, who was dressed as the Bee, came third in the first season of the competition.