The symbol of the rasta lion is closely connected to Haile Selassie, a former emperor of Ethiopia whom the Rastafarians worshipped as the Messiah. They believed that he could return African citizens who were living in exile as the result of colonization and the slave trade. This lion was on the Ethiopian flag until 1975.
Bob Marley is easily one of the most famous Jamaican singers and musicians of all time. He served as a world ambassador for reggae music and sold over 20 million records throughout his career. Before going solo he was in a band called the Wailing Wailers which formed in 1963 and also pumped out many hit songs. They spent many years touring around the world in a cloud of smoke. Marley was, and still is known after his death, as a huge cannabis advocate.