One Day As A Lion (a.k.a. ODAAL) is a music project that was started in 2008 by Zack de la Rocha, the vocalist of Rage Against the Machine and Jon Theodore, former drummer of Mars Volta.[1]  The duo blends elements of rock, metal, rap, and punk.[2]  One Day as a Lion released an eponymous debut EP in July 2008 and was planning to release a follow up during 2009.