Marrakesh, Morocco - 50 Cent is preparing the grand opening of Fiesta Beach, a club, hotel and and restaurant located in Marrakesh, Morocco. The event is set to be held tomorrow (April 29) and Saturday (April 30), according to a Facebook post and video. The G-Unit rapper is partnering with entrepreneur Olivier Da Silva to open Fiesta Beach, the third property of the Fiesta Group. The company's…