There are at least eight artists with this name 1. A neo-rockabilly band from the United Kingdom 2. A melodic hardcore band from Ohio, United States 3. A heavy metal band from Germany 4. A metalcore band from Australia 5. A gothic metal band from Indonesia 6. A hardcore band from Virginia, United States 7. A hardcore band from Swindon, England 8. A hardcore band from Cambridgeshire, England now called First Breath. http://www.last.fm/music/First+Breath
http://www.facebook.com/Restlesshxc
9. An ambient hardcore band from San Antonio, TX.
http://www.facebook.com/restlesshc
http://restlesshc.bandcamp.com/album/walk-the-world