The group shot to fame after winning the Eurovision Song Contest way back in 1974 with "Waterloo," — and artists including Conchita Wurst are set to pay tribute to Abba during this year's grand final on Saturday night being held in Malmo, Sweden.

Why did Olly Alexander fall flat in the public vote? Why didn’t Abba show up? And how did the trophy get smashed?

The Eurovision stars aligned last year as Sweden claimed its seventh victory — a feat shared only with Ireland — bringing the song contest back to Abba’s home country this year, just in time to celebrate the 50th anniversary of their 1974 win.

Fifty years ago, two Swedish married couples went on the most consequential double date in music history, changing pop for good at the Eurovision Song Contest.

Musicians, journalists and music fans are gathering in the Swedish city of Malmo. Here’s a guide to what Eurovision means, how it works and what to watch for.

From Nemo's winning performance to the ABBA avatars making an appearance, here are some of the noteworthy moments.

However, an unclear situation clouded his participation and left him out of the final, which is why many Eurovision fans booed EBU supervisor Martin Österdahl. After Holland's controversial departure,

This year's Eurovision final will be remembered for its numerous political controversies. The Dutch contestant's exclusion sparked outrage among the audience, a reaction that did not go unnoticed by the contest's executive producer.