tell application "iTunes"
    set current_track to the current track
    set track_artist to the artist of the current track
    set track_name to the name of the current track
    set track_album to the album of the current track
end tell

set searchTerm to track_artist & " " & track_name & " lyrics"

#
# The following code is needed if you want to substitute spaces with plus signs in the google search string
#
set thewords to words of searchTerm
set oldtids to AppleScript's text item delimiters
set AppleScript's text item delimiters to "+"
set googString to thewords as text
set AppleScript's text item delimiters to oldtids
#
#
# If you wish to use plus signs, you can change searchTerm in the following string to the googString
#
set serURL to "http://www.google.com/search?client=safari&rls=en-us&q=" & searchTerm & "&ie=UTF-8&oe=UTF-8"

tell application "Safari"
    open location serURL
    activate
end tell