Tons of Rock

Tons of Rock is an annual hard rock and metal festival hosted at Ekebergsletta in Oslo, Norway. Since its inception in 2014, it has established itself as the leading festival for hard rock and heavy metal in Norway.

In 2022, it was reported that the core audience consists of adult attendees from across Norway, with a wide age range and approximately equal numbers of women and men. In 2025, the festival claimed that it attracts an international audience from more than 80 countries.

After relocating from the small town of Halden to Oslo in 2019, the festival came under majority ownership by Live Nation Norway, which now holds 51% of the shares, while the four founders retain the remainder.

Festival headliners have included Iron Maiden, Metallica, Black Sabbath, Ozzy Osbourne, Megadeth, Alice In Chains, Kiss, W.A.S.P., Faith No More, Pantera, Deep Purple, Bring Me The Horizon, and Muse.

The festival stages are all named after Munch paintings.