Don Henley and Billy Joel, true American rock royalty, have remained friends throughout their careers.Joel even sang at Henley's wedding, while Henley showed his admiration by performing at Joel's Kennedy Center Honors. Now these two music legends are set to make a rare public appearance together, when Joel moderates a conversation with Henley at 92Y. Hear them talk about their lives, their careers and about Henley's Cass County, his first solo album in 15 years, a musical return to his roots.