Bjorn Ulvaeus – $300 Million

The name Bjorn Kristian Ulvaeus might not sound familiar, but add in ABBA to the mix and it all lines up. The Swedish songwriter and producer was a member of the globally popular ’70s  band ABBA which disbanded in 1982. Ulvaeus lent his expertise to the band’s repertoire of music as a co-producer of 2008’s musical rom-com Mama Mia! He’s managed to build himself a $300-million fortune but in 2005, he was in trouble over back taxes. Ulvaeus apparently owed an estimated $12.8 million to the Swedish Tax Agency and as a precaution, he decided to pay up. After two and a half years, a county administrative judge ruled that Ulvaeus never owed that sum – ouch!