80s/90s hip-hop can be a distinct subgenre, though. Listen to stuff like old Ice Cube or Public Enemy and compare it to the hip-hop of today, there are like no similarities. That's different than classic rock, though, because it only describes bands from a certain time. Like, you wouldn't call Ghost B.C. or Boris classic rock even though they share some sounds with "classic rock" bands like Led Zeppelin or Rush.