There are numerous songs that I have had obsessive moments with - songs that I've had to listen to at least 5 times every time I played them. Usually there's always one song that I can't get out of my head. But right now, I don't have one soooo I'll pick a random song that I love.
Joss Stone's "Proper Nice" from Introducing Joss Stone (2007)
I absolutely love this entire album from beginning to end. It's definitely one of my faves.