Ska is a form of Jamaican music which began in the early 1960s. Combining elements of traditional mento and calypso with an American jazz and rhythm and blues sound, it was a precursor in Jamaica to rocksteady and later reggae. It is the predominant form of music listened to by Rudeboys, Mods, and Skinheads, amongst others, with artists such as Symarip, Laurel Aitken, The Charmers and The Pioneers aiming songs at these groups as far back as the 1960s.