Surely It Is Not I: Los de Abajo and "Sr. Judas"

I'm getting this in just under the wire today. In case you're wondering about the post's title, it is a paraphrase of what Judas replied to Jesus when Jesus said "Tonight one of you will betray me." I'm not really a biblical scholar, so I probably don't have the words right.

Today's random song is from Mexico. Los de Abajo was founded in 1992 in Mexico City as a Latin ska group. Over time, their musical influences have become more inclusive of rock, reggae, salsa, Son Jarocho, banda sinoalense and cumbia. Liber Terán is their main vocalist and writes most of the songs. After releasing their first album independently, they were signed to David Byrne's Luaka Bop label and released their international debut, the eponymous Los de Abajo. Their followup album, Cybertropic Chilango Power, earned them a BBC Radio 3 World Music Award for the Americas. They have released eight albums and are noted supporters of the Zapatista Army of National Liberation and have even featured Zapatista leader Commandanta Esther on one of their songs. Sr. Judas is from their 2002 CD Cybertropic Chilango Power.