Los Aztex features accordionist Joel Guzman and singer-composer Sarah Fox. Their music is a blending and melding of the music of the roots music of the border country. Together, their stunning cohesive performances have propelled them into the national stage garnering them 3 Grammy nominations in the Best Tejano Album category in 2009, 2010, and 2011 as well as Grammy wins in 2004 and 2005.
Guzman was once considered a child prodigy, known among fellow (much older) accordion players as "El Pequeno Gigante." or the small giant. Today he is one of the world's most prominent accordionists in the world, playing music spanning and bending genres such as Conjunto, Americana, Jazz and Traditional Folk.