Turbonegro cancelled their European tour; now they've pulled the April US tour as well. Euroboy is quite badly unwell:
"A huge apology to the U.S. fans and to the promoters. I'm sure that all will understand that this decision wasn't taken lightly, but it is the right decision for Euroboy. He is in good shape, all considered, but his treatment makes it impossible for him be away for long periods of time and certainly not to be taking long haul flights.
"We are keeping the European shows from May 2nd forward in place, as this schedule works within the boundaries of his treatment.
"It's a delicate situation we find ourselves in. Our first priority is Euroboy's health; we'll look at everything else when we know that he is well."
I suspect that a doctor might be able to pull together an on-the-hoof guess at what is actually wrong with him based on the information in that statement.