After the popularizing of Buju Banton's dancehall song "Boom Bye Bye" in the early 1990s, dancehall music came under criticism from international organizations and individuals over anti-gay lyrics. In some cases, dancehall artists whose music featured anti-gay lyrics have had their concerts cancelled. Various singers were investigated by international law enforcement agencies such as Scotland Yard, on the grounds that the lyrics incited the audience to assault gay people. For example, Buju Banton's 1993 hit "Boom Bye Bye" advocates the violent assaults and murders of gay people. Another example, T.O.K.'s song "Chi Chi Man" which advocates the killing of gay men and women.