Who formed the rock group One Day as a Lion?
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Who formed the rock group One Day as a Lion?

### Input:
One Day as a Lion was an alternative rock supergroup that was started in 2008 by Zack de la Rocha, the vocalist of Rage Against the Machine, and Jon Theodore, former drummer of The Mars Volta and current drummer of Queens of the Stone Age. The duo blended elements of rock and hip hop. One Day as a Lion released their eponymous debut EP in July 2008 on the Anti- label. The band's name comes from a quote by Benito Mussolini

### Response:

One Day as a Lion was an alternative rock supergroup that was started in 2008 by Zack de la Rocha, the vocalist of Rage Against the Machine, and Jon Theodore, former drummer of The Mars Volta and current drummer of Queens of the Stone Age. The duo blended elements of rock and hip hop. One Day as a Lion released their eponymous debut EP in July 2008 on the Anti- label. The band's name comes from a quote by Benito Mussolini
Zack de la Rocha and Jon Theodore