In the 1960s, Bellamou Messaoud and Belkacem Bouteldja began their career, and they changed the raï sound, eventually gaining mainstream acceptance in Algeria by 1964. In the 1970s, recording technology began growing more advanced, and more imported genres had Algerian interest as well, especially Jamaican reggae with performers like Bob Marley. Over the following decades, raï increasingly assimilated the sounds of the diverse musical styles that surfaced in Algeria. During the 1970s, raï artists brought in influences from other countries such as Egypt, Europe, and the Americas. Trumpets, the electric guitar, synthesizers, and drum machines were specific instruments that were put into raï music. This marked the beginning of pop raï, which was performed by a later generation which adopted the title of Cheb (male) or Chaba (female), meaning “young,” to distinguish themselves from the older musicians who continued to perform in the original style. Among the most prominent performers of the new raï were Chaba Fadela, Cheb Hamid, and Cheb Mami. However, by the time the first international raï festival was held in Algeria in 1985, Cheb Khaled had become virtually synonymous with the genre. More festivals followed in Algeria and abroad, and raï became a popular and prominent new genre in the emergent world-music market. International success of the genre had begun as early as 1976 with the rise to prominence of producer Rachid Baba Ahmed.