By Lucretia Munro Fans of The Masked Singer are convinced that they know who the celebrity is behind the disguise of Cricket on the ITV show. Fans believe that Seal is the star under the guise of the Cricket costume after singing a version of Rhythm of the Night, which was originally released in 1992. In a bid to generate hype, ITV posted a message on their website asking that asked who was behind the costume. And fans were quick to comment. One fan said on X, formerly known as Twitter: “Is Cricket Seal? #TheMaskedSinger.” Another said “Is Cricket Seal??!! I’m ignoring the clues and just going…