There are 3 bands with this name.

Ruckus (Los Angeles, not to be confused with the other Nu-Metal esque band with the same name) Is a heavy hardcore band. They've got an EP, a 2 song sampler, and a split with Xibalba/World of Pain under their belt, and they're undergoing writing for their debut LP.

The Ruckus was a ska-punk band out of Herndon, VA.

Also a Swiss metal band that released a full-length album in 1994 and later morphed into http://www.last.fm/music/Shakra

Also a rapper named Andrew Brown...better known as Ruckus, local in Cass City, Michigan. He unfortunately passed away in 2005 from a car accident. http://www.myspace.com/andrewbtharuckus

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