Watch the full-length episode at http://video.pbs.org/video/2365399272/?Utm_source=youtube&utm_medium=pbsofficial&utm_campaign=gper_covefullprogram (US Only) Acclaimed opera soprano Renée Fleming sings “Danny Boy,” a song dear to Irish Americans, at the American Voices Concert at the Kennedy Center in Washington, DC. The performance was part of the weekend-long American Voices festival that Fleming produced and led. The documentary American Voices with Renée Fleming airs Friday, January 9 at 9 pm on PBS (check local listings).