uan Carlos Fernandez, also known by his alias "Guonka" is a DJ/Producer hailing from San Jose, Costa Rica.

Nicknamed "Juanca", his artistic name originates from it's own mispronunciation, creating the sound of "Guonka", in the English language.

His particular "Two-Faced" Style holds from an underground groove of Tech/Deep House, to aggressive Dubstep drops and Drum & Bass breaks.