ABBA have revealed they believe their new songs are "timeless".
The Swedish pop icons are working on new material, set to be included in a special VR avatar 'tour' later this year.
The live experience will use cutting edge technology, and prompted ABBA to return to the studio for the first time in decades.
The band's Bjorn Ulvaeus travelled to London for the premiere of Mamma Mia! Here We Go Again, and spoke about the new songs on the red carpet.
"One of them is a pop tune, very danceable," Ulvaeus said. "The other is more timeless, more reflective, that is all I will say. It is Nordic sad, but happy at the same time."
"I think that exuberant quality of the two ladies (Agnetha Faltskog and Anni-Frid Lyngstad) together singing, that makes the saddest song a bit uplifting. I think that is what happens and that (it) is very organic: (it) isn’t calculated, (it) just happened that way."
ABBA's Benny Andersson, meanwhile, dampened hopes for a full album. He said to reporters:
"Doing another album is like doing Mamma Mia 3: what is the point unless there is a good reason, good script, good environment? It is such a joyful experience, so that is a reason to do it."
ABBA's two new songs will be unveiled later this year.
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