In Italy this past week for a series of shows on the band's European trek in support of 2014's Bloodstone & Diamonds, Flynn and a friend took a tour of the Vatican Museum and the Chapel, the ceiling of which was famously painted by Michelangelo in the early 1500s.

The singer shared the experience in a lengthy Facebook post and his online tumblr diary, The General Journals. Flynn writes: "The Sistine Chapel is a must-see-before-you-die type thing. So, of course I had to document it and bring my video camera. The guards didn't stop me one bit as I filmed everywhere and as I entered the Sistine Chapel I was journaling myself walking and taking you guys through what I was doing.

"In the midst of doing so, it was then that a guard warned me in broken english, 'No camera.' Of course I disregarded him. I don't know what it is with me but when someone tells me not to do something that I want to do, that 'f*** you' button gets hit. So I just hung the camera around my neck and kept filming."