Abba’s Björn Ulvaeus got married for a third time on Saturday, with the ceremony officiated by the former Great British Bake Off presenter Sandi Toksvig. The Dancing Queen singer, 79, tied the knot with his Danish girlfriend Christina Sas, 51, in Copenhagen in a small ceremony in front of family and friends. Ulvaeus was pictured smiling in a sleek grey suit and T-shirt as he held on tightly to his bride, who wore a khaki-coloured dress. Toksvig was dressed in a clerical-style, gold-embroidered red cloak as she spoke into a headset microphone in front of the bride and groom. The designer Søren Le Schmidt, who is known for dressing Danish royalty, provided clothing for the wedding. The Danish-British presenter has been friends with Ulvaeus since they collaborated on the theatrical show Mamma Mia! The Party in 2018. Toksvig’s role in the wedding, along with those of the Danish singers Anne Linnet and Kaya Brüel, made the evening “extra special”, read a post on the Abba star’s social …