By Breaking Celebrity News Staff

Kristin Cavallari isn't letting her engagement meltdown put a crimp in her style.

We found the former Hills star out multitasking -- walking her dog and talking on her cell phone -- in West Hollywood Monday.

As Breaking Celebrity News has been reporting, Cavallari and Chicago Bears star Jay Cutler called off their wedding plans late last week.

The pair had already selected the date and venue for the big day when Jay pulled the plug.