Born April 23, 1937, in Pozas barrio, Ciales, Puerto Rico,[1] Adalberto's relaxed and flawless lead vocals are among the best in the salsa genre of Latin music.

[2] He appeared on three of their albums before disagreement over musical direction led him, and three other band members, to split during the mid-1970s to form Los Kimbos.

[2] Santiago sang lead vocals on charanga albums, Fantasía Africana/African Fantasy and Our Heritage - Nuestra Herencia, by flautist, composer and producer Lou Pérez.

[2] Santiago then co-produced Calidad with Papo Lucca, who also played piano, and oversaw musical direction.

[2] Adalberto did his own version of salsa romántica on Sex Symbol, with production, arrangements, musical direction and piano by Isidro Infante.

[2] This album produced one of Santiago's biggest solo hit songs "La Noche Mas Linda Del Mundo".

In 2022 he recorded a Trap / Reggaeton style song "Quitate" with noted rappers Jon Z. and Nengo Flow.