September 27, 2014 3:46 am Jimmy Fallon, Robert Plant Sing Doo Wop on “The Tonight Show” Using a mobile app, Jimmy Fallon and Robert Plant sang Gene Chandler’s “Duke of Earl,” accompanied by the doo wop sound they created. US & World Videos 5:49 Kelly Clarkson hilariously attempts handmade pasta with chef Evan Funke 1:36 O.J. Simpson's cause of death revealed 2:03 Does Shakira still believe in love following Gerard Piqué split? 2:36 Super dad makes Mario-themed obstacle course for son's birthday 1:59 Ellen DeGeneres jokes about being ‘kicked out of show business'