Former Abba star BJORN ULVAEUS has been order to pay 16 million kronor (GBP1.1 million/$2.1 million) in undeclared royalties by Swedish tax officials. The DANCING QUEEN hitmaker is accused of tax evasion, with officials believing Ulvaeus siphoned his royalty payments into a Netherlands-based construction company. VICTOR PALM, a spokesperson for the country's tax office, says, "He is paying less tax than he should." Last year (06), Swedish authorities presented Ulvaeus with a 90 million kronor (GBP6.7 million/$13.1 million) bill for backdated taxes, fees and interest rates prior to 1984, when he moved to the UK. Abba enjoyed chart success in the 1970s and 1980s, selling 370 millions across the world.