Like a pregnant woman craving for specific types of food (may be a bad comparison, but that's the first one that comes to mind), sometimes, certain songs just stick to you, regardless of how long ago they were composed. It may be memories surrounding the song, people that you remember or the sheer tune itself and today, I'm hooked to this one from Vinnai Thaandi Varuvaayaa :)
https://www.youtube.com/watch?v=I2XK58JZ_wQ
