Final answer:
Complete diversity is important because it allows the case to be heard in federal court instead of state court.
Step-by-step explanation:
The subject of this question is Law.
When determining if a case has complete diversity, it means that all plaintiffs are citizens of different states from all defendants. In this case, if a DJ is hosting parties for citizens of different states and the amount involved is over $75,000, it would fall under the jurisdiction of federal courts and could potentially have complete diversity. Complete diversity is important because it allows the case to be heard in federal court instead of state court.