Colombian salsa band which in the '90s began to rival the success of Jairo Varela's Grupo Niche, who during the previous decade had transformed Colombian commercial music with a confident, sassy sound aped by countless others. A contributing factor to Guayacán's success was that they dared to be different: "Guayacán's sound is rootsier, more apparently fixed in the structure of the Cuban guaguancó and montuno, sparser, darker, with stripped-down arrangements," said UK salsa deejay Tomek.