I don't care for opera music, but it definitely takes a great singer to do opera music!

It takes heavy duty training in order to become an opera singer. It's not something you can just wing. The amount of control and power an opera singer must have is astronomical. No other singer can possibly compare to the amount of dedication and training that opera requires.

i agree with thespikedturtle

^ Agreed with everyone up there.

But I'd say any kind of rock because it takes a ton of straining in the voice and while performing you usually have to rock out as well as sounding good. Most rock singers have to be able to hit every single note, mainly the high ones, and with perfection.

I think all singers should hit the correct notes.

IMO, Jazz singers have the strongest voices.

All of them of course.

My friend is AMAZING at opera. She sang for the President...

It's very difficult to sing opera.
Only the BEST singers with the greatest vocals can do that.
:)

I don't listen to jazz much, but I know that jazz has some extremely complicated stuff being played. We played some jazz songs in my band class and we listened to a lot of jazz pieces, and I immediately knew I would never be able to be a jazz musician.

Although I really prefer opera, I think jazz is more complicated. Opera would be second, though.

I think opera singers need to be talented and their voices to be very high!!

Oh, whoops! Misread the question. XD