I mean I don't listen to any classic rock and never have but doesn't mean I couldn't name 10+ bands from "pop culture knowledge" It wasn't a judgement statement, I know i have a not so popular taste in music. to each their own..
I don't know Ludacris and usually only equate Will Smith with the movies. I thought Puffy only produced. I of course know Dre and Snoop though.
Unless you are over 50 or have spent the last 15 years in a hole without television or radio then you pretty much have to know who Ludacris is - I have never listened to country, but I bet I could tell you at least 50 stars in 10 minutes or less. If you really don't know who he is...I want to know how you managed to disconnect so fully from the media...it might come in handy some day.