"A little time" - The Beautiful South
They did a brilliant singing at cross-purposes look earlier in the year, and never quite got the cameras right again; bright blue lights and the audience clapping along distract from the intense verbal battle between Paul and Brianna.
It'll win the viewer vote for Best Video at next year's BPI awards, and it'll be one of the group's calling cards throughout their career.
I was thinking that maybe your memory was substituting the lyrics of "A Little Time" a bit into what you remember.
Would that there were a way for you to hum the tune across the FediVerse! (-: