The Ying Yang Twins’ D-Roc yells to the crowd. The Ying Yang Twins performed in Johnson Athletic Center on Friday, April 27, as the main act following Ozomatli in the annual Spring Weekend concert. Brian Hemond—The Tech May. 9, 2016 Facebook Twitter Reddit Print The Ying Yang Twins’ D-Roc yells to the crowd. The Ying Yang Twins performed in Johnson Athletic Center on Friday, April 27, as the main act following Ozomatli in the annual Spring Weekend concert. Brian Hemond—The Tech