My granddaughter likes Justin Bieber's songs.
is your grand dad 15?
Justin Bieber was born in 1994 and I am 60.
Do you listen to him?
Not intentionally.  "baby" is one of his songs.
is your granddaughter about his age?
Yes, Beiber was born in 1994 and my granddaughter was born in 1995.
What kind of music does he sing?