Another weekend is here and many of the biggest stars are performing in some of the greatest theaters. If you want to know where Anna Netrebko, Sonya Yoncheva, Jonas Kaufmann or Piotr Beczala are performing, here is a look at our top five to see this weekend. “Andrea Chénier”- Teatro Colón, Argentina  José Cura continues his run of “Andrea Chénier,” {…}