There are at least two artists with the name Twin Brother:
1) Twin Brother is the stage name of Brighton multi-intrumentalist Alex Wells, previously known as "Rothko". His musical style is usually compared to Arcade Fire, Radiohead, Bright Eyes, M. Ward and Broken Social Scene.
www.twinbrother.co.uk
1) Twin Brother was a band hailing from Las Vegas, NV.
http://www.myspace.com/twinbrotherlv