In 1999, Philippine vocal group
Wiseguys released
Wiseguys. The group consists of four members, all of who sing. The instrumentation is provided by session musicians. The music of
Wiseguys is centered in vocal harmony, some of which is reminiscent of 1950's American doo wop. The group usually has one member singing lead vocals, while the other members provide silky backing harmony, often weaving stirring vocal patterns throughout the songs or providing the response to the lead singer's "call." The lead singer per track isn't identified, but it's obvious that the members take turns handling lead vocals.