Abba’s Björn Ulvaeus fears for future of West End theatres

Björn Ulvaeus is one of the singer/songwriters for the Swedish pop group Abba and co-wrote the songs for the hit musical Mamma Mia! It's been playing in London's West End for two decades.

But Björn predicts a slow recovery for musicals and theatre, saying it will be a long time before people will want to sit in packed auditoriums.

Video: Jeremy Howell