Slottsfjell Festival returns to Tønsberg, Norway on July 9-10, 2026, featuring a diverse lineup of house, electronic, future house, indie pop, and folk pop artists. The festival showcases both international and Norwegian talent, with headliners including Australian electronic artists Fisher and Dom Dolla, UK singer-songwriter Tom Odell, and popular Norwegian acts like Astrid S and Cezinando. The two-day event brings together 20 artists representing Australia, the United Kingdom, and Norway, offering attendees a mix of electronic dance music and contemporary pop sounds.