Seth Rogen and Zac Efron Destroy Conan O'Brien in 'Mario Kart 8'

For the latest installment of his ongoing 'Clueless Gamer' segment, Conan O'Brien challenged Neighbors 2 stars Seth Rogen and Zac Efron to a couple rounds of the frat-house favorite Mario Kart 8. The stakes are set so that the loser of each round gets a set of male genitalia drawn on them, so as long as the doodles meet TBS' PC standards. Rogen and Efron quickly find loopholes and back-doors to these regulations, which spells awful news for O'Brien, who is patently awful at video games. By the s...