Denmark's Eurovision 2009 Entry
If you want to know how memorable Niels Brinck's Eurovision number "Believe Again" is, just watch how well he knows the song himself.
Oops! Denmark is a lot more forgiving than Simon Cowell, though, and it voted this one through. Of course, as Eurovision Blog notes, this was co-written by Ronan Keating. Bloody traitor. I mean, I know Lord Andrew was writing the U.K. number this year, but still, Ronan...
Per Jen: this one is an early contender, a very catchy and widely accessible pop song. Note - the force of Ronan runs strong in this one.