Hellfest returns to Clisson from June 27 to 30, 2024. As always, the extreme music festival has pulled out all the stops, inviting a host of talented artists to help festival-goers let off steam. So, who are the must-see acts on stage this Sunday? Here are 5 bands not to be missed this Sunday, June 30, 2024 in Clisson for the new and 17th edition of Hellfest.