who is this mick jagger everybody talking about
Are you serious? Hes only the lead singer and founding member of the Rolling stones. One of the greatest bands of all time!
i've never heard of the rolling stones. is it a pop group?
C'mon man it's rock & roll and he has been one of the most influential people in the genre for over five decades. 
oh, it's not the type of music i listen to lol that's why i don't know anything about them, i would like to learn more
Oh, well his distinctive voice is what makes the band so unique, along with Keith Richards' guitar style.
how cool
I know right, Richards and Jagger have composed most of the music for the Rolling Stones, and they continue to collaborate to this day.