A Minnesota judge has narrowed the list of people claiming to be Prince's heir.

FOX's Michelle Pollino reports:

A judge has denied 28 people claiming to be heirs to the Prince estate, further solidifying the inheritance claims of the superstars six surviving siblings, however, Minnesota judge Kevin Eide is making them go through genetic testing.

Meanwhile those family members have announced an official Prince tribute concert:

(Prince) "I just want your extra time and your kiss."

It's set for Oct. 13, just shy of six months after he died. No word on who will be involved; the family says it will release that information in bits and pieces as the date gets closer.

Michelle Pollino, FOX News.

Follow Michelle Pollino on Twitter: @MichelleFOXEnt