Dhanush has a smile and grin that makes the woman-kind go weak at the knees and eventually faint. The way he says "kolaveri ... aaa di" at 0:43 and grins. The way he sings "pa pa pa pan, pa pa pa pan.. " line and the music that follows. The aalap that starts at 3:30 and only lasts less than 10 seconds. Shruti Haasan is out of this world gorgeous! Especially at 2:25! The direction and the lighting in this video are done so beautifully. Of the very special soup boys. Who are they any way? He resembles Vivek Oberoi but just a lot more handsomer. It's his mooch! Last but now least, it's "cow-u cow-u holy cow-u.." I mean HOLY COW it's the crazy music!!!
OK, scratch all of that. The REAL reason is because it's RAJNIKANT's son-in-law and daughter!!!