There are multiple artists with this name:  xKINGDOMx is a vegan straight edge hardcore band from Philadelphia and Boston, formed in January 2006.  Kingdom was a post-metal band from Belgium. It was a side project of Amenra members. http://www.myspace.com/kingdomcomes  Kingdom is Ezra Rubin, an American bass music producer, with a sound that sits somewhere in between dubstep, house & uk garage, with R&B influences. He's part of the fledgling London-based label Night Slugs.
Read more about Kingdom on Last.fm.
User-contributed text is available under the Creative Commons By-SA License and may also be available under the GNU FDL.