Our best guesses on the celebrities in disguise. Today, Rumer took to Instagram to answer fans’ questions about what it was really like being under the Lion mask. We agree with Nicole Scherzinger, who says the Lion is not a professional singer. The Masked Singer revealed both the lion and rabbit during its semifinals round ... the lion was revealed to be Rumer Willis. Rumer Willis? The final three costumed contestants -- The Bee, The Peacock and The Monster -- are still set to face off when The Masked Singer season finale airs Wednesday, Feb. 27 at 9 p.m. ET/PT on Fox. Our best guesses on the celebrities in disguise. The Lion is Rumer Willis, who is best known as one of the three daughters of Demi Moore and Bruce Willis. The Masked Singer revealed both the lion and rabbit during its semifinals round. The Lion was unmasked, revealing her true identity, Rumer Willis. All of the clues appear to fit. In her second clue video on The Masked Singer, the Lion is seen reading a newspaper called "Hailey Times." See Rumer Willis’ Lion Tattoo, Which She Had Removed Rumer Willis says that she's not the celebrity behind the mask of The Lion on Fox's The Masked Singer… The Masked Singer is a hit and guesses are pouring in about who the performer dressed as the lion could be ... Is it Rumer Willis? "The Masked Singer" fans have been guessing Bruce Willis and Demi Moore's daughter, Rumer Willis, was the Lion on the new Fox show. Wikipedia lists Rumer's home town as Hailey, Idaho, where her dad owned a … All of the clues appear to fit. Many are guessing that Rumer Willis could be the celebrity behind the lion mask on The Masked Singer. The Masked Singer revealed both the lion and rabbit during its semifinals round. Rumer Willis? The Monster performs on the series premiere of "The Masked Singer," Fox's bizarre new reality show. The Masked Singer is a hit and guesses are pouring in about who the performer dressed as the lion could be ... Is it Rumer Willis? Many are guessing that Rumer Willis could be the celebrity behind the lion mask on The Masked Singer. The Lion was revealed on last night's "The Masked Singer" and The Lion stopped by Access Live to talk about how hard it was to keep his/her identity a secret. Also available on the NBC app. Last night, we saw the most shocking elimination on The Masked Singer yet! The Monster performs on the series premiere of "The Masked Singer," Fox's bizarre new reality show. Now, the "Empire" actress is responding to the rumors that she's behind the mask.