Broadway star (and Glee alum) Kristin Chenoweth barely got a chance to plug her new ABC show, GCB (aka Good Christian Belles, premiering March 4) during her appearance on the Late Show With David Letterman Thursday night, thanks to her Benedryl-induced ramblings that jolted the audience from one strange topic of conversation to another. David Letterman seemed to be a little weirded out by the whole interview, though we can't say it was any trippier than his encounter with Joaquin Phoenix in 2009.
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