I'm sure many would be up for it
One of the judges on The Masked Singer this season (Robin Thicke) just guessed Justin as one of the final 3 (a "Rock" turtle). I'm not that familiar with his singing to actually know if it might be him, but MJ laughed at that guess so it's probably not xD Robin is usually good with the guesses, but he also guessed turtle was possibly Adam Lambert, and he's so far from being Adam so yeah xD