Valentine’s Day can never get sweeter and musical (and easier.) If your heart is singing, the time is now to croon, hum, swing and dance. And Serenade is the way to fix up your date; hold it, rather there are 640 of your own ways, to tune up; and make the romantic date with a capital R. Heineken has bent the tech-world to bring out the loveliest of all the Facebook Apps. See the following fun video and...