After a-ha’s performance at the Rock in Rio Lisboa festival was cancelled due to Covid in both 2020 and 2021, hopefully third time’s the charm as a-ha have now been confirmed for next year’s festival:

25 June 2022: Rock in Rio Lisboa Festival, Lisbon, Portugal

Duran Duran have also been confirmed for the same day.
Tickets already purchased will remain valid for the 2022 festival. More info here.