Pope Benedict XVI Greets Pueri Cantores Singers at a Vatican rehearsal. December 30, 2010. AFPC President Patrick Flahive with Pope Benedict XVI at the 36th International Congress. American choirs sing at St. Paul Outside the Walls. Rome 2010. AttachmentSize Pope Benedict XVI Greets Pueri Cantores Singers at a Vatican rehearsal. December 30, 2010.119.25 KB AFPC President Patrick Flahive with Pope Benedict XVI at the 36th International Congress.53 KB American choirs sing at St. Paul Outside the Walls. Rome 2010.135.33 KB