Crossword Genius

"Waterloo” group (4)

Ross

I believe the answer is:

abba

'waterloo group' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for abba that I've seen before include "Palindromic Swedish pop group who sang ` `Waterloo' '" , "Eurovision prizewinning Swedish pop group" , "Pater's" , "Biblical pop" , "Swedish pop music group" .)

I've seen this clue in The Wall Street Journal, the King Feature Syndicate and the Newsday.
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