The Masked Singer involves a handful of costumed-celebrities competing for the title. Each week, clues are revealed that point to each celebrity’s identity. Who they really are is only revealed when each celebrity is sent home.

Season 2 of the series ended in December with comedian Wayne Brady, disguised as a fox, winning the series. Fans generated a handful of theories for who could be under the mask, and Brady was a popular guess.

A few leading conspiracies surfaced throughout Season 2 included that former Cheetah Girl and The Real co-host Adrienne Bailon was Flamingo. Bailon denied her involvement in the show in multiple interviews. Still, when Flamingo took off their mask, Bailon was revealed. Other celebrities on the series also denied being a part of the show, like Victor Oladipo (revealed to be Thingamajig) and Chris Daughtry (Rottweiler).

Ahead of Season 3, some fans already suggested theories for the celebrity identities based on early promotional videos. One leading theory suggests Paris Hilton may be under one of the masks.

A promotional video for Mouse shows a Beverly Hills sign, as well as a suspicious house number. 3340 appears on a mailbox in the video, an address Hilton is known to have lived at in the past, Variety reported.

In addition, the video showed a few possible representations of Hilton’s style. The video includes Masked Singer host Nick Cannon delivering the Mouse costume to the celebrity’s home. Two Ugg boots stepped out a mansion, matched with pink pants. There’s also a chihuahua dressed in a pink tutu that enters the screen. Because of Hilton’s beloved 2000s style, as well as her love of her pets, many were inspired to think Hilton could be Mouse.

A previous social media post of Hilton’s also clued some fans in. In October, Hilton posted a filtered video of herself that quoted film Mean Girls. “I’m a mouse, duh!” Hilton wrote, according to Talent Recap.

The Masked Singer will return Sunday night around 10:30 p.m. ET, and will air again on Wednesday at 8 p.m. ET on Fox. The show will air in its usual Wednesday timeslot for the rest of the season. Until then, viewers can browse all of the costumes already released on The Masked Singer’s Instagram account.

Kitty

Taco

Turtle

Kangaroo

Astronaut

Frog

Llama

White Tiger

Bear

Miss Monster

Swan

Banana

Robot

Mouse

Rhino