Shrien Dewani's wife Anni was shot when a taxi the couple were travelling in was hijacked in November 2010.
Meanwhile Labour Minister Anni Sinnemaeki of the Green League said she was not surprised but "very disappointed" by the vote.
Several thousand fans cheered as Benny Andersson, Bjorn Ulvaeus, Anni-Frid Lyngstad and Agnetha Faltskog walked down the red carpet in Stockholm.
One of the two men accused of murdering honeymooner Anni Dewani in South Africa has had brain surgery to remove a tumour.
City of Westminster magistrates' court in London heard he was suffering from severe post-traumatic stress disorder following the shooting of Anni Dewani.
Shrien Dewani, 31, from Bristol, is appealing against an order for his extradition to stand trial over the killing of 28-year-old Anni Dewani.
Shrien Dewani, 31, is appealing against an order for his extradition to stand trial over the death of his wife Anni in Cape Town.
Anni Holden, spokeswoman for the diocese of Hereford, said the legal costs of the case to the diocese were being met by an anonymous donation.
The trial of a man accused of murdering new bride Anni Dewani in South Africa has been postponed for assessment of his ability to concentrate.
Mr Dewani's wife Anni, 28, was shot when a taxi the couple were travelling in was hijacked in a township on the outskirts of Cape Town in November 2010.
BBC: Honeymoon murder: Shrien Dewani 'mental health relapse'
Dewani is accused of hiring a crew of hitmen to kill his wife, Anni Dewani, 28, during a taxi ride in Cape Town, South Africa, while they were on honeymoon in 2010.
CNN: UK court halts extradition of honeymoon killing suspect
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