I don't know if all of Andrea Bocelli's work count as opera because he tours performing his pieces instead of some operatic story but he's one of the best selli

I don't know if all of Andrea Bocelli's work count as opera because he tours performing his pieces instead of some operatic story but he's one of the best selling musicians in the entire world (>75 million albums). The article undersells just how popular he is. If anyone has a chance to go hear him perform, it is a real treat. No other concert I've been to has sounded as good as he and the orchestra do live, especially Con Te Partiro (which he usually sings in the encore).