1977 Career-Defining Classic Was a No. 1 Hit Song 51 Years Ago Today

The song became one of the group's most emotionally resonant hits and a defining moment in their rise to global fame.
Yahoo

ABBA Scores Its First No. 1 on Billboard Dance Chart in Half a Century Thanks to ‘Gold: Greatest Hits’

ABBA’s 1992 collection Gold: Greatest Hits rises a spot to No. 1 on Billboard’s Top Dance Albums chart (dated Jan. 17), becoming the legendary group’s first career No. 1 on the ranking. The set, which ...
American Songwriter

The Song That Introduced the Somber Side of ABBA in 1977

ABBA had proven they could offer frivolous pop perfection. "Knowing Me, Knowing You" showed that they could get deep.
Parade on MSN

How ABBA's 'Mamma Mia' almost became a hit for another group

[Shudders at the thought.] ...