Swedish pop band (4)
I believe the answer is:
abba
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">swedish pop band</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for abba that I've seen before include "rhymes in Petrarchan sonnet" , "Form of address to deity" , "Palindromic 70s pop group" , "Swedish pop music group" , "Waterloo singers" .)