Linda Ronstadt is 69 today. Here she is on Johnny Cash’s show in 1969 performing one of her first solo hits, “Only Mama That’ll Walk the Line,” and then a duet with Johnny on “I Never Will Marry.”

Ed Kilgore

Ed Kilgore is a political columnist for New York and managing editor at the Democratic Strategist website. He was a contributing writer at the Washington Monthly from January 2012 until November 2015, and was the principal contributor to the Political Animal blog.