Salsa remained a major part of Colombian music through the 1990s, producing popular bands like Sonora Carruseles, while the singer Carlos Vives created his own style that blends salsa with vallenato and rock. Vives' popularization of vallenato-salsa led to the accordion-led vallenato style being used by mainstream pop stars such as Gloria Estefan. The city of Cali, is known as Colombia's "capital of salsa", having produced such groups as Orquesta Guayacan, Grupo Niche, songwriter Kike Santander, and Julian Collazos, the producer of the Marco Barrientos Band. Cabijazz from Venezuela plays a unique blend of timba-like salsa with a strong jazz influence.