At age 76, musician Kris Kristofferson is still writing songs. His new album is called Feeling Mortal. Courtesy of the artist hide caption

itoggle caption Courtesy of the artist

Kris Kristofferson performs in the "That" tent on Sunday, June 13, 2010, at the Bonnaroo Music and Arts Festival in Manchester, Tenn. Laura Fedele hide caption

itoggle caption Laura Fedele

Otis Redding performs in London in 1967. Jan Persson/Redferns hide caption

itoggle caption Jan Persson/Redferns