gistfile1.rb

require "net/http"

request = Net::HTTP.new("grooveshark.com")

path = '/more.php?getCountry'
data = '{"method":"getCountry"}'
headers = {'Host' => 'grooveshark.com',
  'User-Agent' => 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:5.0.1) Gecko/20100101 Firefox/5.0.1',
  'Accept-Encoding' => 'gzip, deflate',
  'Accept-Charset' => 'utf-8',
  'Connection' => 'keep-alive'
  }
  
resp, data = request.post(path, data, headers)

puts resp.body.force_encoding("utf-8")