getting most recently played artists using last.fm

artist.rb

require 'rss'
require 'open-uri'

url = 'http://ws.audioscrobbler.com/1.0/user/kristianfr/recenttracks.rss'
file = '/Users/kristian/.bin/artist.txt'

loop do
  begin
    open(url) do |rss|
      feed = RSS::Parser.parse(rss)
      music = feed.items.first.title
      File.open(file, 'w') { |f| f.write(music) }
    end
  rescue
    `osascript /Users/kristian/.bin/itunes.scpt > #{ file }`
  end
  sleep(10)
end