Concerning tickets to the extended date, Wednesday June 21, 2023., the promoter has this information on their website:

"4 day festival passes, Wednesday day passes, VIP upgrade and all camping tickets go on sale on Friday 24 February at 10.00.

For more info on tickets and other questions go to www.tonsofrock.no/billettoversikt

Anyone who have purchased 3 day festival pass or 3 day VIP festival pass will receive an email before everyone else with the opportunity to upgrade to a 4 day festival pass at a low price. If you have not received the email, check your junk mail. Otherwise, we refer to the ticket overview page."

Enjoy!