Green Day frontman Billie Joe Armstrong has been hospitalised with an undisclosed illness.
The band were forced to cancel an appearance at a festival in Bologna, Italy when the frontman was rushed to hospital.
"We apologize profusely. This is really unfortunate, but Billie got rushed to the hospital last night due to illness," said bassist Mike Dirnt in a video posted on the band's website. "The doctors don't think it's a good idea for him to play today. This sucks - we really, really were looking forward to playing in Bologna as the highlight of our tour."
"We're beyond devastated and sad, as you guys are. Billie is extremely upset about it, but we'll see you soon," said drummer Tre Cool.
The cancelled Bologna set would have been their final appearance in a short run of shows to promote their upcoming album trilogy "¡Uno! ¡Dos! ¡Tre!", which will be released on September 25, November 13 and January 15 respectively.
Watch Green Day in action at Reading Festival two weeks ago in this clip, where Billie Joe appeared to be in good health:
What do you think could be wrong with Bille Joe? Did you catch them during this short run of festival dates in Europe and Japan? Let us know in the comments.