After a standout 2025, Heavy Week-end returns to Nancy Open Air to treat heavy metal and hard rock fans to a third edition as splendid and thrilling as the previous ones. Mark your calendars for Friday, June 5, Saturday, June 6, and Sunday, June 7, 2026 in the Grand Est region to ride the wave of three explosive days. On the menu? The French act Gojira, the Swedes Sabaton, and the Germans Electric Callboy, but also Nova Twins, the Cavalera brothers, Trivium, Three Days Grace, and the Americans Savatage! Here’s the daily lineup and the concert times.