Details: I didn't actually hear the music. But a guy -- maybe 20 -- walked on the bus with a woman who appeared to be his mother, with a cat in a carrier. He rapped the entire song -- at least what he could remember -- out loud.
I wondered -- not out loud -- why the cat was along for this voyage. Then, as the crew exited the bus, the young man -- and I'm paraphrasing here -- said "You're about to get you nuts clipped, you fuzzy bastard!"