Rocker With Serious Stones

The Scorpions' lead singer Klaus Meine was stricken with kidney stones.  His affliction lead to the postponing of the February 22nd concert in Sydney Australia 
  Initially promoters simply alluded to a  "medical emergency within the Scorpions tour party,".  As is the new normal, Meine gave us the inside scoop through social media
  "Dear fans, the good news first, We had a fantastic show in Melbourne Wednesday night at the Rod Laver Arena. Loved every minute of it. It just feels soooo good to be back in Australia !!!! The bad news is, I have had kidney stone surgery in a Melbourne Hospital. It was a very painful attack. In the hospital they removed the stone, and put in a stent. Can you imagine how I feel right now ??? So sorry Sydney. Do we have to cancel again ??? It looks like it, but we are hoping to re-schedule for next weekday to be announced."