By Charlotte Tutton Eurovision viewers were “disappointed” during the live 2024 final, after ABBA performed – but it wasn’t what they hoped it would be. It had been teased the group could hit the stage, decades on from their epic Eurovision win with the contest held in Sweden this year. But amid questions over whether the band would unite after calling it quits a long time ago, host Graham Norton hinted it wasn’t clear what would be happening. He admitted to viewers he was unsure if the real ABBA would be back or if it would be the famous virtual version of the band that has amazed fans recent…