The international music game show franchise "Masked Singer" originated from which country?

"Masked Singer" is an international music game show franchise. It originated from the South Korean program "King of Mask Singer", developed by Munhwa Broadcasting Corporation.

The format features celebrities who perform anonymously in elaborate head-to-toe costumes and are unmasked if they receive the least number of votes. In the United States and the UK votes are limited to the live studio audience members due to the show being pre-taped. While the panelists do the guessing based on clues the singers give about themselves, the panelists do not participate in the vote. Singers in the American version have spanned the range of Grammy award winners to professional video gamers & YouTube influencers to professional athletes.