Michael Schneider Variety Editor at LargeSPOILER ALERT: Do not read ahead if you have not watched Season 5 season premiere of “The Masked Singer,” which aired March 10 on Fox.It’s not easy being seen: Kermit the Frog was the first celebrity to be unmasked on Season 5 of “The Masked Season,” as the hit Fox series returned on Wednesday night.You read that right.