Time for a new hue! Ahead of her Hawaiian vacation on July 22, Britney Spears debuted a colorful new hairdo in the form of freshly dyed lavender tips. Most of her staple buttery blond shade still intact, the 33-year-old integrated the punchy hair color with her natural hue in the form of a playful ombré. While the new 'do might be the result of a breakover (post-breakup makeover), it could also just be Britney being Britney. It's well documented she likes to change her hair quite often. And purple-tipped tresses are hardly the most drastic hair makeover the pop star's ever had. In fact, she once rocked pink and blue ends at the same time.   Also experimenting with bold colors...