[Request] How to sing video by rhett and link

So let's just face it, most of us out there that think we have a good voice often sound like a train going off the rails, but I don't think we're stuck that way. Over the years, Rhett and Link's singing voices surely have gotten better, (though honestly I don't notice much of a difference, they sounded pretty good, even in the unibrow song) but I was wondering if maybe they had taken lessons, or just were naturally good at singing. Maybe it's the fact that they rarely make a song that isn't comedic in some manner, but nevertheless, I can listen to their music all day and still enjoy it.

Which brings me to my question. Are any of you Mythical Beast's good singers? And if so, how did you become such a good singer? Were you born that way? Did you take lessons? I would love to see Rhett and Link make a video explaining more in depth of their singing careers. I've seen their GMM Musical History, but that's about their very first beginnings, like in school and such. Anyways, It'd be cool to get some advice so we can start singing the Pluto on the Rebound like a pro! :D