Chattanooga firefighters were not the only ones in Coolidge Park this weekend, so were members of the Salvation Army.
It is their first ever Rock the Red Shield concert.
Organizers say its a big thank-you concert for the the whole community.
They wanted to give back because they say the community has been so gracious to them for almost 120 years.
We caught up with a student at GPS who gave up her Saturday to volunteer at this event.
She made popcorn and cooled people down with snow cones.
Leah Russell says, "Really, really excited. It's great to be here and see everyone have fun, and just laying back and listening to the music and just having a good time."
Major Al Newsome, the Area Commander with the Salvation Army, adds, "It is important for us to take the time to say thank-you to them because over the years the donors have been very generous to the salvation army."
This event marks the end of national Salvation Army Week.