Reneé Fleming is not only the host of this 2013 event at Kennedy Center – she also was its instigator: design a series of master classes, lectures and performances, all tied to celebrating the best American vocalists, in many different genres. This very condensed overview of that multi-day event includes peeks at such master classes as Alison Krauss in country, Ben Folds in rock, and Sutton Foster representing Broadway. They all perform in the celebratory concert, along with Josh Groban, Kurt Elling and others. Check local listings.