John Prine: At home with the songwriting legend

It's been 47 years since John Prine earned his first Grammy nomination for best new artist. Since then, he's won two. At the age of 72, Prine has never been more popular. His highest charting album yet, "The Tree of Forgiveness," is up for three awards at Sunday's Grammys. John Dickerson traveled to Nashville for this extended conversation with the songwriting giant. Watch "CBS This Morning" HERE: http://bit.ly/1T88yAR Download the CBS News app on iOS HERE: https://apple.co/1tRNnUy Download the CBS News app on Android HERE: https://bit.ly/1IcphuX Like "CBS This Morning" on Facebook HERE: http://on.fb.me/1LhtdvI Follow "CBS This Morning" on Twitter HERE: http://bit.ly/1Xj5W3p Follow "CBS This Morning" on Instagram HERE: http://bit.ly/1Q7NGnY Get new episodes of shows you love across devices the next day, stream local news live, and watch full seasons of CBS fan favorites anytime, anywhere with CBS All Access. Try it free! http://bit.ly/1OQA29B Delivered by Norah O’Donnell, Gayle King, John Dickerson, and Bianna Golodryga, "CBS This Morning" offers a thoughtful, substantive and insightful source of news and information to a daily audience of 3 million viewers. The Emmy Award-winning broadcast presents a mix of daily news, coverage of developing stories of national and global significance, and interviews with leading figures in politics, business and entertainment. Check local listings for "CBS This Morning" broadcast times.