The group ABBA are back. They will release new songs and a new album for the first time in 39 years. The Swedish group formed in 1972. They are one of the most successful pop groups ever. They are famous for songs like Dancing Queen. A romantic comedy film called Mamma Mia! was released in 2008. This had many of their biggest hits. The movie later became a stage show. It is one of the longest-running shows in London and on New York's Broadway.

ABBA just launched a website called ABBA Voyage. It is about a new mystery project. However, ABBA's guitarist accidentally said a new album will come this autumn. Fans may be disappointed to learn that ABBA will not be in a new stage show. Instead, there will be digital, lifelike avatars of each group member. The avatars have the nickname "ABBAtars". There will be eight shows a week. They will be in a special, new theatre in London.