Entertainment Tweet by @SheffCityHall Published July 31 2020 07:02 PM ICYMI 📢📢 Tickets now on sale 📢📢 @UB40 featuring Ali Campbell and Astro @Ali_Astro_ will be performing @SheffCityHall on Friday 9th April 2021, the opening night of the Unprecedented Tour.Tickets now on general sale further info visit https://t.co/whYczUZsqZ, — Sheffield City Hall (@SheffCityHall) July 31, 2020 18:02