Black Sabbath guitarist Tony Iommi offered a brief update and a heartfelt thank you to fans as the band's North American summer tour wrapped. Since the guitar deity is receiving ongoing treatment for cancer, the tour was a bit long for his taste. Ever the trooper, Iommi deemed the run of dates amazing nonetheless, as the riffologist enjoyed playing tunes from the band's chart-topping album '13.'

Below is Iommi's update, in which he reveals that he remains in treatment and what his experience on the tour was like. He especially enjoyed a wide cross-section of fans when it came to the age of the people in the crowds. Sabbath fans are boundless and ageless.

Well we've finished the US leg of our world tour. It was a bit longer than I would have liked as I've already been in hospital having another infusion. The tour was amazing though, you always hope it's going to go well but you never know, it's great to look out and see so many people of all ages. The new songs have been going down well, we've played them enough now so we're comfortable and that helps the performance. Many thanks to everyone who came to see us, South America next, and just like Australia this is a first time for Ozzy, Geezer and me together. All the best!

Hopefully the next leg of dates won't be too taxing for Mr. Iommi, since he is still receiving care for his condition.