I really enjoy barbershop music or what some people call rap!  Do you enjoy it?
I sure do I just love it so much, I use to sing barbershop music back in the day, is there anything you'd like to know about it? 
That's awesome!  When did it originate and where?
Well most of it originated in the early 1930s as a style of a cappella close harmony, It was characterized by consonant four-part chords for every melody note in a mostly homophonic texture.
Interesting!  Do you know any well known singers of that genre of music?
There was a band called the "Sweet Adelines quartets", it was in association with the organization of that name at that time, But I dont know any others. 
Did they win any awards or accolades for their music?
I'm not sure sorry, But the band is comprised of new members every year and is still going on to this day.