WATCH: Dolly Parton and author James Patterson talk about collaborating on “Run, Rose, Run”

Two of the biggest names in their respective fields not only share a cause, but a byline. Singer-songwriter Dolly Parton and bestselling author James Patterson talk with CBS Sunday Morning correspondent Lee Cowan about the novel they have co-written, “Run Rose Run”; how it corresponds to their advocacy for literacy; and how their artistic collaboration sparked a blooming friendship.