Really? But rap is only glorified talking at best (I'm holding back). Of course you all know how I feel about rap but still, I would suggest that that genre doesn't belong in this category since it really doesn't require a voice in terms of "singing".
I can understand this sentiment, since rapping emphasises lyrical invention and intricacy more than showing off lung power, but it's no more "glorified talking" than Celine Dion (for example) is "glorified screaming".
Hip-hop is as diverse a genre as they come, and I certainly wouldn't dismiss it; I suspect, TIS, your exposure to it has been limited to more popular stuff. Gangster rap?
Eminem is a sort of pop-rapper now.
Here are some of my favourite lyricists, and for that matter, vocalists, too. Because rapping is about delivery as well as poetry. Please listen, TIS, and lemme know whatchya think:
All for now.
...dot com bold typeface rhetoric. You go clickety click and get your head split. 'The hell you look like on a message board Discussing whether or not the Brother is hardcore?
But rap is only glorified talking at best (I'm holding back). 
Of course you all know how I feel about rap but still, I would suggest that that genre doesn't belong in this category since it really doesn't require a voice in terms of "singing".