Ariel Altamirano, founder of Discos Pegaos and the name behind Dementira, has worked for over 15 years as a DJ and producer related to electronic, hip-hop and independent music. Always moving into vertices where genres cross, his work is distinguished for a personal approach in the creation of urban and electronic beats, where the influence of South American music takes more and more prominence.

Dementira has also been known for being part of bands of Chilean artists such as Fakuta, Sentinela del Norte and Gepe, for his eclectic DJ sessions, and for his contribution as a graphic designer to the Chilean musical scene with dozens of covers, singles, posters, and recently, videoclips.