Justin Anderson loves blondes! Especially this one. Kristin Cavallari's expert hair colorist—the man responsible for cleansing her of the look she once referred to as "Playboy bunny platinum"—and longtime pal will return to TV alongside Very Cavallari's titular star in January, when the E! series makes its anticipated third season debut. So, to adequately prepare ourselves for another year of fabulous friendship both on- and off-screen, we're looking back at a handful of the pair's cutest, coolest and most adventurous Bff moments. Take last season's slumber party, for example. During Very Cavallari's...