Dream Theater drummer Mike Portnoy has expressed regret over the way he left the prog metal five-piece and “hurt” his bandmates. Portnoy, who co-founded Dream Theater in 1985 and also serves ...

“You wouldn’t believe what I’m doing right now – I really wish you could see what’s going on,” laughs Mike Portnoy down the phone, sounding out of breath and unusually flustered.

For 40 years, Mike Portnoy, one of the greatest rock drummers of all time, has been the driving force behind the prog rock band Dream Theater. But for more than a decade, he and the band were split.