Late Show with David Letterman S11E78 · Jessica Simpson & Nick Lachey, Al Green

Late Show with David Letterman

Season 11 · Episode 78 · Jessica Simpson & Nick Lachey, Al Green

Stephanie demonstrates her ex-boyfriend's lackluster dancing abilities once more; John McEnroe does the Top Ten and promotes his new talk show at the same time; Gavin MacLeod makes a guest appearance in "Potatoes or Gavin MacLeod?"; by the end of the show, Steph, Gavin, and John are dancing together.