[Crystal_Ageha]

I think all those things, and a few more, are important in their own ways, and that all singers should strive to be as perfect as possible in all those aspects, because all of them can turn you into a better singer. But the only ones I think you NEED are a decent range and the ability to control your pitch. Because without range, you are guaranteed to sound monotone, and usually strained and generally unprofessional. And if you're always off pitch....well, that's obviously very bad, lol. Also, I think all singers should have general control. It doesn't have to be focused in the vibrato or anything, but rather, you need to make sure all your notes are as crisp as possible and everything. This makes the difference between sounding polished or sounding like an amateur.

But another thing that I think you need, if you want to be considered an amazing singer, is the natural voice... It's hard to explain, but... Well, there's a reason that some people just don't seem that awesome at singing. I mean, she can have a three and a half octave range, beautiful vibrato, unbelievable control.......but her voice is...ugly. I guess it's a mixture between things like timbre, clarity, tone, and then generally how your voice sounds.... Some people just have beautiful, clear voices, and this adds SO much to what people think of your singing!

And one more thing, as the others have mentioned, putting your heart and soul into your singing is a real key. You could technically be singing 'perfect', but if you don't care and aren't actually feeling what you're singing, you won't sound your best, and you probably won't make a real connection with your audience, which is something that is very important for any performer or artist. And if you have this emotion and connection, you don't even have to be a great singer, honestly. You'll still draw quite a few people in. Just make sure you don't overdo the emotion, eh heh..... This is basically over-singing, and it can be incredibly annoying. >_<