I see you're a blogger yourself! You haven't posted in a bit--are you retaking the GMAT again?
I don't see anything wrong with a Pink Floyd or a Bollywood song. I mean, I guess the Bollywood might remind the adcom too acutely that you're an Indian applicant, but if it conjures up real, authentic, and interesting memories of your life, I don't see any problem with that. And well, Pink Floyd is a classic!

I thought about referencing one of my favorite songs, River by Joni Mitchell and how it was totally ruined for me when I heard it playing at a sex shop in Chicago. Haha, then I decided that fell into the category of "TMI" (too much information).