If you sing in the car or at karaoke etc, and you want to sound bad, try singing along to Meat Loaf. His operatic style is not easily imitated without specific training. What's odd about this is you will think it's in your range but you won't be able to nail the way it should sound. Most hard to imitate artists sing way high, like Def Leppard or Geddy Lee of Rush.

It was also difficult for him to sing like himself, i.e. you can find live videos on YouTube etc of him sounding just terrible. But man, when he was good...not a lot of people doing it like that.