They say the winner takes it all, and when it came to fame, fortune and writing their name into the annals of pop music, ABBA certainly did. 

But just how did four young Scandinavian singers join forces to become the biggest- selling pop band in history? From their early days as budding artists to winning Eurovision, storming the global charts and bringing Australia to a hysterical halt, this is the history of arguably the most iconic pop act the world has ever seen. With in-depth analysis of all nine studio albums, accounts from their tours and a look at how the band managed to keep turning out the smash hits even as their private lives collapsed, prepare to dive into a world of glitzy gear, record-breaking songs and blockbuster movies. Oh, and there's the fishy agreement that made it all possible. I hope you enjoy the journey. I do, I do, I do, I do, I do...