In his one-man show "Surviving Twin," first performed in 2013, singer-songwriter Loudon Wainwright III created a "a posthumous collaboration" with his father, Life magazine columnist Loudon Wainwright Jr., alternating his songs with his old man's essays.
A story of love and competition, the show has been recorded for posterity as a Netflix special, directed by Christopher Guest and executive produced by Judd Apatow, the latter of whom has used the singer as an actor in his TV series "Undeclared" and the movie "Knocked Up," which also included his songs on the soundtrack. (The actor Daniel Stern directed “Twin” for the stage.)