"Release Me" - Agnes.
Proof that even if you don’t like an act, you only need one song to change your mind. In the case of Agnes Carlsson, this was it. I had never been a fan of hers, purely on the grounds that she beat my beloved Sebastian Karlsson in the second season of Swedish Idol - I’m not good at forgiving/forgetting, but this finally won me over (as did her Melodifestivalen entry "Love Love Love" eventually).
I'm particularly glad that she is achieving worldwide success now - the more Swedish artists taking over the world, the better!