What do you call four black guys on a stage?  The Auction
Did you mean this as a joke?
Actually, I don't understand why you asked. It's a joke about how african americans are treated in this country.
This country's history of slavery was a terrible period that caused real harm to multitudes.  It is not right to make jokes about this, because it can be upsetting for people who are still treated as less worthy than their fellow Americans.