Late Night with Seth Meyers Season 5 Kelly Clarkson, Kal Penn Season 5, episode 69 Kelly Clarkson, Kal Penn February 28, 2018 45 min Seth welcomes Kelly Clarkson and Kal Penn. Previous episode Uma Thurman, Jimmi Simpson, Stephanie Wittels Wachs Next episode Sarah Jessica Parker, Mae Whitman, Tony Rock