Okay, so I watched the premiere of this series last week – and as an American approach to a South Korean singing competition format, it retains enough essential goofiness to keep me interested. The elaborate costumes are part of it (tonight, for example, we’re introduced to Pineapple, who already has won me over with his, or her, Hawaiian shirt) – but the rest will depend on whether there’s at least one genuine singing celebrity in the mix.