ABBA World opens at London's Earls Court today and runs until March 28. It includes a 'holographic video' performance from the members.
Björn Ulvaeus told Sky News of reunion reports: "It is very boring to have that question asked, yes.
"There's been Sheiks and all kinds of people trying to get us back together but we need a musical motivation. But it's nice for people to remember us as we were, isn't it?
"It's weird, it's like you become a spectator yourself, I mean it's almost 30 years since we split up now, and here we are. It's weird and wonderful, isn't it?"
Anni-Frid 'Frida' Lyngstad added: "If I picture myself on stage these days, I really don't know what I would do there.
"I could never do the things I did when I was young. I'm just happy I have these memories.
"It's a nostalgia trip. When you get older in a normal world you look back at photo albums but for us it's something you never get away from. It is weird in a way, I must say."