Hahahah, Great fact about Mr. Chapman. I should try that...lol.
Roscoestring has a good point. Just listen to the artists you really like, and try and hear how they do something. Then mimic it. I did that for years before taking any voice lessons, and when I did start voice lessons, we were able to skip stuff because I'd already picked it up from listening to people sing. I say that in no way to brag, just to say it works. Obviously you want your own style, (you don't want to sound like everyone else) But, you'll get it.
In all honesty, if you concentrate on not singing through your nose, using breathe support, and head resonance, then you'll be on your way. There's a lot more to it than that, but, it'll sure get you started.
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