Ring a ding ding!
Tulsa firefighters and police officers face off for a little friendly competition.
For the fifth year in a row, they're volunteering to ring the Salvation Army bell.
All day, teams have helped man the red kettle outside Promenade Mall hoping to get the most donations.
Police Sergeant Doug Brown says, "It's a nice thing to do. Some people need it."
They'll be out there until 8 tonight, so be sure to stop by and show your support!