Niagara River Rocks Concert at Gratwick Park

June 10, 2013 Updated Dec 10, 2013 at 8:24 PM EDT

By Mitch Simon

...
June 10, 2013 Updated Dec 10, 2013 at 8:24 PM EDT

NORTH TONAWANDA, N.Y. (WKBW) - A huge crowd gathered Sunday night at Gratwick Park in North Tonawanda for the Niagara River Rocks Concert brought to you by Cornerstone Federal Credit Union.

Primus hit the stage for the first of three free concerts.