Kendrick Lamar  is now the most decorated  Grammy-winning  rapper of all time, with his mantle holding a total of 27 awards.   The “Humble” rapper blew past previous record-holder Jay-Z’s 24 wins, scooping up the honors for Best Rap Album for GNX ; Best Rap Song for “TV Off”; Best Melodic Rap Performance for “Luther”; Best Rap Performance for “Chains & Whips”; and Record of the Year for “Luther.”   “It is hip-hop as usual, man,” Lamar told the audience as he accepted the award for Best Rap