2nd or 3rd only to "I like 30A stickers" and "John Mayer is cool"
I have a 30A sticker on the Ford Sexpedition and John Mayer has nailed:
Katy Perry
Kim Kardashian (Who hasn't?)
Taylor Swift (Who wants to?)
Colbie Caillat
Sheana Marie Jancan
Jennifer Aniston
Minka Kelly
Cameron Diaz
Jessica Simpson
Jennifer Love Hewitt....to name a few...
Plus, he's a multi-$kwadrillionaire from playing the guitar. That is sooooo uncool.