Radiohead will embark on a rare international tour starting next spring. Although details are still in the works, the British alternative rock band is expected to play multiple markets in sizeable venues. An extended run will be a treat for dedicated fans who missed Radiohead’s summer 2006 dates, which landed in a handful of European and north American markets. Frontman Thom Yorke is reported to be anything but a fan of international treks and, in the past, the singer has raised concerns over the effects of touring on climate change.http://www.billboard.com/bbcom/news/article_display.jsp?vnu_content_id=1003660154