It is probably apparent that most of my all-time favourite Eurovision entries come from the Nordic countries.
So here is "En Dag" by Tommy Nilsson which represented Sweden in 1989. If ever a song deserved to win the contest it was this one: good singer, good song, extremely fabulous songwriting pedigree (the legend that is Alexander Bard, along with Ola Håkansson & Tim Norell of Secret Service). And Tommy's big hair just ruled that year.
Find the original MF-winning performance at http://www.youtube.com/watch?v=NnPRuYCtI2w