As Stephen Colbert joins the ranks of late night TV, take a look back at memorable hosts through the years.
Stephen Colbert will succeed David Letterman as host of "The Late Show" after Letterman retires in 2015, CBS announced on Thursday. The comedian joins a long list of late night TV hosts through the years. Here are some of the more memorable, both past and present:
Library of Congress
Sign up for Breaking News, Daily Headlines, Severe Weather Alerts & more!