Levi Johnston threatened to sue, Conan O'Brien listened -- and last night he apologized for using an "imposter's" Twitter account to make fun of Sarah Palin's daughter's baby daddy.
William Shatner was back again to do a reading from the "real" Levi ... and this time, the Taco Bell inspired quotes are totally authentic.
Conan to Levi: Sorry We Shat on You
11/6/2009 7:15 AM PST BY TMZ STAFF
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