Four sons of reggae legend Bob Marley have planned a concert to commemorate what would've been Tuff Gong's 62nd birthday.Stephen, Ky-Mani, Damian and Julian Marley are set to take the stage during “Smile Jamaica,” which will take place on 10 February in Marley's birthplace of Nine Miles (Jamaica) in St. Ann Parish, said Marley spokesman Jerome Hamilton to The Associated Press.The concert's name is borrowed from a 1976 show that was organised by the Jamaican government to promote harmony between politically aligned gangs.“They are trying to push a message of peace although it won't be as hard-core as when Bob did it,” said Hamilton in reports. “Smile Jamaica” also coincides with Bob Marley Week, the week-long celebration of Marley's birthday (6 February).