David Letterman David Letterman

Craig Ferguson hosts The Late Late Show in 2011. Sonja Flemming/AP hide caption

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Sonja Flemming/AP

Boundary-Pushing Late Night Hosts Move On — Colbert Up, Ferguson Out

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Louisville basketball player Kevin Ware talking with reporters Wednesday, as coach Rick Pitino looked on. Timothy D. Easley/AP hide caption

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Timothy D. Easley/AP

In this image taken from video and provided by Worldwide Pants, Inc., Republican presidential candidate Rick Perry presents the "Top Ten Rick Perry Excuses," on the set of the Late Show with David Letterman. AP hide caption

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