While Jay Leno and David Letterman enjoyed their summer vacations last night, Justin Long entertained Jimmy Kimmel Live fans by performing an actual month-long text exchange he shared with an anonymous Justin Bieber fan with the help of audio visuals. Meanwhile, Stephen Colbert bit into a bacon flag and Jon Stewart examined gaping holes in security arguments with the help of Anderson Cooper.

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Late Night Highlights: Justin Long Impersonates a Bieber Fan, Jon Stewart and Anderson Cooper Examine Gaping Holes






















