Download the Ringtone!
ICTFC - The Ringtone...
The RINGTONE is Here!
iPhone users:
Download the file on PC or Mac, double click on the .M4A ringtone it should open it in iTunes and save it for syncing, 
but if that doesn’t work, right-click (or control-click on a one-button Mac) on the ringtone file and specify to ‘open with iTunes’.
You can also ‘drag’ the file into the iTunes Library. Sync your iPhone.
That should do it!
CLICK TO DOWNLOAD FOR Windows & Android
PC Users: Right click on mouse & save
Mac Users: Ctrl button & download linked file