A black Lamborghini spins in circles, cheered on by men in white T-shirts and medallion necklaces. Larry W. Cook has reused a clip from the 2000 music video "Get Your Roll On" by the rap group Big Tymers but replaced the audio with a version of Dr. Martin Luther King Jr.'s "I Have a Dream" speech. The civil rights leader's speech has been chopped and screwed, a hip-hop turntable technique that inv...