4x7 - LOL : Qui rit, sort !

They’ve now been playing for over 6 hours, and the last contestants are battling to the death. And the grand final is here. But for the first time on LOL, the staring-each-other-in-the-eyes-without-laughing game is interrupted by an amazing mystery guest! Who will manage to keep their composure and be declared the winner of Season 4?