A fine system will be in operation.
Fines for singing off-key, forgetting words, heckling, inappropriate dress, plus fines for not getting fined. Fines for singing long ballads, short ballads, no ballads. Fines for wearing sandals and socks. Fines for wearing sandals OR socks. For wearing an anorak, for being an anorak.

Heck, just bring loadsamoney and your singing voices. We'll find ways to extract both from you.