Organizers of a family-sanctioned Prince tribute concert in his hometown of Minneapolis have yet to announce a lineup of musicians or ticket sale plans for the Oct. 13 show at the city's new NFL stadium.

The delay has frustrated fans who've already booked flights and rooms, but they say they feel better now that a New York public relations agency has come aboard to help manage the event.

Lois Najarian O'Neill, a partner in the PR agency The Door, told The Associated Press on Thursday she hoped all questions would be answered in 24 hours.

The authority that runs U.S. Bank Stadium said earlier this week that no contract had been signed. Stadium spokeswoman Jennifer Hathaway declined to say Thursday whether anything has changed.