ABBA is going on tour in 2019 - but entirely as digital holograms, modelled on how they looked in 1979.
The digital tour will come seven years after a posthumous hologram of Tupac performed 'live' alongside Snoop Dogg in 2012.
New artists are increasingly competing not just against their peers, but against all the pop musicians in history. Already, streaming services mean that people can access music from 50 years ago as easily as they can hear today's newest albums. Now, with the rise of hologram performances, it seems lives artists do not need to be physically present - or indeed alive!
What does this mean for the future of performance, and for competition in the industry?