Which lens is better for concert photography: Canon 50mm f/1.8 STM or Tokina 11-16mm f/2.8?

I have a Canon 550D camera with 18-55mm kit lens and a Canon 50mm f/1.8 STM prime lens. I am looking for differences between the Canon 50mm f/1.8 STM and the Tokina 11-16mm f/2.8 wide angle lens, specifically for concert photography (both evening and night time).