Have always liked this song - as mentioned in one of my very old posts - reminds me of Shakespeare's "Shall I Compare thee..."
It's a pity Karan Johar gave up his "candy-floss" style and tried to make "grown-up" movies with themes and plots from old Hollywood flicks. Catch the sheer creativity and originality in this one:
This song is sheer poetry -
Back to Shah Rukh for this one:
...and though I don't really like Mrs. Rai Bachan - can't help liking this song: