On Wikipedia https://en.wikipedia.org/wiki/Boni_Pueri,_the_Czech_Boys_Choir
Alternative Spellings BONI PUERI, Boni Pueri, the Czech Boys Choir
Creation 1982
City Hradec Kralove, Czechia
Country Czech Republic
Links Allmusic

BONI PUERI ("Good Boys"), the Czech Boys Choir has given more than 2500 concerts in North America, Asia and Europe, has produced 13 recordings and has been invited to participate in 20 other recordings with Supraphon, EMI, BMG and ArcoDiva. In addition, Boni Pueri has been featured on a number of television and radio broadcasts. The choirs are invited to perform regularly with eminent artists, including José Carreras, and with other important ensembles and orchestras around the world. wikipedia