LONDON — It’s 50 years since ABBA won a major battle with “Waterloo.” A half-century ago on Saturday, the Swedish quartet triumphed at the 1974 Eurovision Song Contest with the peppy love song, which ...

In short: To celebrate 50 years since ABBA's famous Eurovision win, a new documentary on the Swedish group will air in the UK in May. The band has also announced it will reissue a new version of its ...