Kristin & Audrina -- BFFs Again

4/16/2010 5:00 PM PDT

Kristin Cavallari & Audrina Patridge -- BFFs Again

Looks like the animosity between "Hills" actresses Kristin Cavallari and Audrina Patridge was all for show... as the former frenemies shopped together in Beverly Hills on Thursday.

Nothing cures the Justin Bobby blues, like a little retail therapy.