Yep. My '03 Zetec did that. Mind you, it was well past the replacement interval, but it still blew up without squealing first.
Do the idler and tensioner and belt at the same time and save yourself some agony. Modern serpentine belts tend to look fine right up until the moment they shred, so replacing at the recommended interval is the way to go, in my experience.
Also inspect the other pulleys...water pump, AC compressor, etc...for any play or noise while you're at it. You might save yourself another stranding by replacing one before it fails completely.