Selena Gomez adds some color: Hair extensions jazz up her 'do

Selena Gomez decided to add some new color to her hair just in time for her upcoming tour. "Change is good...My girls @ninezeroone take care of me always :) LOVE," Gomez tweeted after leaving the Nine Zero One salon in West Hollywood.

She ditched her long, dark extensions in favor of some sassy shoulder-length ones in blue and purple, sharing pics of the new look via Instagram (with a cameo appearance from the pup she shares with boyfriend Justin Bieber).

What do you think of Gomez's new look? Hot or not?