May 3rd, 2015. This event was definitely one for the history books. Layzie, Bizzy, Wish Bone, Flesh-N-Bone and Krayzie Bone otherwise known as Bone Thugs-N-Harmony performed their album “E. 1999 Eternal” in its entirety. The Observatory has done a great job not only booking high quality music acts, but they have been successful in getting these acts to perform some of their more classic albums for these special shows. Nothing against new material but it never hurts to take it back to those albums that made people die hard fans to begin with. The main room at The Observatory was treated to a piece of hip hop history that they will soon not forget.