Bob Marley performed the 'One Love Peace' concert in Jamaica with the two different warring political sides. There's always been that in black music and culture in general. It's no surprise because black music is such a reflection of what's going on in black life. It's not unusual for hip-hop.
Dance is bigger than the physical body. When you extend your arm, it doesn't stop at the end of your fingers, because you're dancing bigger than that; you're dancing spirit.