Check out these pics of Agnetha performing on stage with Gary Barlow in the UK.
The performance is for BBC's Children In Need charity concert. This concert will be broadcast on Thursday !
"Agnetha has performed on stage at London's Hammersmith Eventim Apollo tonight with Gary Barlow!
The event was one of two concerts being held for BBC's annual Children In Need fundraising appeal. Gary Barlow is the organiser of this year's "BBC Children in Need Rocks" concerts.
Agnetha arrived in London on Tuesday morning with Lolo Murray and Peter Nordahl.
There will be another concert tomorrow evening (Wednesday). Both concerts will be combined into one TV programme which will be broadcast on BBC One this Thursday, November 14 at 8pm."
There are also a couple of pics from Agnetha's arrival in the UK and a link for the story of her arrival is here: