Former Blue Peter presenters Peter Duncan, Janet Ellis, Stuart Miles and Romana D'Annunzio take on their biggest challenge yet, dusting off their dance moves, platforms and flares as they attempt to pass themselves off as an ABBA tribute band. Zoë Ball presents this 60-minute special as the four TV personalities try to transform themselves into ABBA with Janet as Frida, Romana as Agnetha, Stuart as Benny and Peter as Björn. Unknown to them, their final test is to perform Dancing Queen in front of thousands at the Oxegen Festival in Dublin. Can the famous four successfully ditch Blue Peter badges, sticky back plastic and daredevil dares to fake the band?