The former reality TV regular seems to have taken a leaf out of ex co-stars Heidi Montag and Lauren Conrad's books by lightening her brunette locks to achieve a new golden honey shade - and we love it!
Spotted leaving a hair salon on Thursday (7 November), Audrina looked cool and casual and couldn't stop grinning for the cameras waiting outside. We take it she's happy with her new 'do then?
She wore a pair of cream skinny trousers, a plain tank top and a black cardigan. Perfect comfy gear for a couple of hours spent in the hairdresser's chair!
Audrina also donned a pair of brown boots and some sunglasses, while firmly holding on to what appeared to be a can of hairspray so that she could keep her latest style in perfect condition when she got home.
Although filming for The Hills ended a few years ago, Audrina hasn't completely lost contact with Lauren and Heidi.
In fact, the 28-year-old TV star caught up with Heidi over the summer, when the pair reunited for drinks in Santa Barbara, California.
Audrina also congratulated her former roommate Lauren on her recent engagement last month, adding that she hopes Lauren's man William tell will "treat her right".
What do you think of Audrina's blonde hairstyle? Let us know below, as the best comment each week wins £50!