BJORN ULVAEUS, ABBA MEMBER: Well, there was an idea that we could go on tour as holograms, that was the first idea. And we thought that sounded interesting. But we soon found out that hologram ...

Björn Ulvaeus joins the show. 42 years after its last live concert, ABBA has come back to life with "ABBA Voyage," a spectacular concert event running at a purpose-built theater in east London. The ...