Dave Stewart appeared on the track Brighter by Ozomatli. Asdru Sierra is one of the co-founders of the band. Asdru also contributed vocals to Dave Stewart's Go Green chaarity single for Greenpeace.
Born and raised in Los Angeles, Asdrubal Asdru Sierra is a gifted musician, composer, and singer/songwriter. He is the co-founder of the multi-Grammy award winning, multi-cultural, multi-genre band, Ozomatli; having spent the last 20 years as the group's lead vocalist, trumpet player and keyboardist.