Abba's Frida Lyngstad in a Radio 4 drama

Olivier Award-winning writer Christopher Green has written a play about being a fan. He plays himself in the drama, called Like an Angel Passing through My Room. And, remarkably, so does Frida Lyngstad from Abba. The picture above shows the two of them in a Radio 4 studio recording the play and to mark what I am quite sure is a network first for Radio 4, I've pulled from the BBC archive a handful of lovely pictures of Frida and Abba from previous encounters with the BBC.

Like an Angel Passing through My Room is on Radio 4 at 1415 this afternoon. Listen to the play on the Radio 4 web site for seven days after transmission.

Abba on the Simon Bates show in 1977

Agnetha and Frida at the BBC in the 1970s

On Top of the Pops in 1976

Wearing Radio 1 T-shirts in the 1970s

Frida in an Abba television special filmed in Switzerland in 1979

With Lesley Judd on Blue Peter in 1978

Steve Bowbrick is editor of the Radio 4 blog