William Shatner's dramatic readings of Sarah Palin's oeuvre--whether from her book or her Twitter feed--have been a political comedy goldmine on the Conan O'Brien Show. On Friday, Shatner reprised the act by reading from Palin's memoir, "Going Rogue." But Shatner was in for a (certainly orchestrated) surprise, when Palin herself appeared on stage to read from Shatner's own book. Watch:

In classic Palin form, the former governor tweeted her appearance on the show before it aired, ruining any surprise. She wrote: "In Calif,had blast w/William Shatner,gig w/him airs tonite on Conan.Honored 2 have Wounded Warriors in studio audience=TRUE American heroes-"