There's nothing out of the ordinary about a celebrity getting a haircut — in fact, it's a very popular subject. But what is unique in Bieber's case is the rollercoaster of emotions he experienced while getting the trim (and also being photographed, repeatedly, through a large window in a not-exactly-private setting). It's like we were right there with him, wearing that salon-provided smock, sipping on a glass of seltzer while someone combs our damp hair. The story of a 24-year-old superstar getting a haircut he probably didn't even want in the first place is a surprisingly visceral one, and you can follow along, ahead...