LONDON  – Performing their much-loved hits like “Mamma Mia!” and “Dancing Queen”, Swedish supergroup ABBA returned to the stage on Thursday, albeit as digital avatars, for a new London concert residency. The band – Bjorn Ulvaeus, Benny Andersson, Agnetha Faltskog and Anni-Frid Lyngstad – have been brought to virtual life as digital versions of themselves … Continue reading Super Trouper: ABBA returns to stage as virtual avatars for London gigs