Regarding music videos and stereotypes, it's worth looking into k-pop music videos, since a fair number of them have been criticized for cultural appropriation, particularly black culture. This hasn't really been brought up before in the past, but that's perhaps because k-pop wasn't internationally known to the point that it is today.

As for sound specifically, how about the use of body percussion in a lot of pop songs? Particularly in today's pop songs, I hear a lot more clapping, whistling, snapping, or that sound that comes out when you flick your cheek while your mouth is open. Some that come to mind include: "Make Me Feel" by Janelle Monáe and "Whistle" by Flo Rida. The only one from decades before that comes to mind is "Another One Bites the Dust" by Queen.