High School Musical starlet Ashley Tisdale has celebrated her 26th birthday (again) at Pure nightclub in Las Vegas over the weekend.

Partying alongside her Hellcats co-stars and older sis Jennifer, Ashley celebrated in style, donning a gorgeous mini-dress and debuting her new blonde locks!

Her BFF and HSM co-star Vanessa Hudgens was not in attendance though. Do you think she may be mad at Ashley after seeing her and ex-boyf Zac Efron hanging out on the beach in Malibu earlier this month?

Click through to check out the pics from the party!