Ashley Tisdale & Olesya Rulin: Planet Blue Beauties

High School Musical hotties and BFFs Ashley Tisdale and Olesya Rulin strut their stuff down the street as they do some holiday shopping at Planet Blue in Los Angeles on Monday afternoon. Earlier in the day, Ash also had her hair done at Byron & Tracey salon in Beverly Hills.

Ashley, 23, covers the January 2009 issue of Shape in a bright yellow bikini. She shares with ET, “It was actually my first time taking pictures in a bathing suit, so I was really nervous.” Ashley also opens up about the 2007 nose job she had done to help her breathe.

10+ pics of Planet Blue buddies Ashley and Olesya…