Soukous became popular in London and Paris in the 1980s. A few more musicians left Kinshasa to work around central and east Africa before settling in either the UK or France. The basic line-up for a soukous band included three or four guitars, bass guitar, drums, brass, vocals, and some of them having over 20 musicians. Lyrics were often in Lingala and occasionally in French. In the late 1980s and 1990s, Parisian studios were used by many soukous stars, and the music became heavily reliant on synthesizers and other electronic instruments. Some artists continued to record for the Congolese market, but others abandoned the demands of the Kinshasa public and set out to pursue new audiences. Some, like Paris-based Papa Wemba maintained two bands, Viva La Musica for soukous, and a group including French session players for international pop.