“Tell Me Why,” is the greatest black girl group doo-wop song ever.  John wrote it in Paris or New York, presumably influenced by his relationship with his then wife Cynthia, well, at least according to Paul McCartney.  John Lennon was a genius at creating the kind of propulsive and driving rock and roll that was also deliriously joyous.  “Tell Me Why” is like a massive bag of delicious candy in this regard, an unstoppable sugary confection of love, sadness, and exuberance.  The video below is from the “A Hard Day’s Night,” film, an excellent vehicle for the song.  Also, I noticed, YouTube started adding a 3D effect to some of its videos, and this one has it.  I couldn’t get it to work right, but maybe you can, in which case, the Beatles 3 pronged vocal attack will beam right out of your screen and into your face…pretty awesome, no?