Festival organisers gifted Slam Dunk fans a line-up announcement on Christmas Day.
Chart-topping Canadian singer Michael Bublé will play a huge outdoor concert in Hatfield next year.
Organisers of Hatfield's Slam Dunk Festival have confirmed the third wave of bands joining the 2020 line-up.
Organisers of Hatfield music festival Slam Dunk 2020 have confirmed more of the Punk In Drublic stage line-up.
Sum 41 have been announced as the second Slam Dunk Festival 2020 headliner coming to Hatfield.