Taking care of some promotional duties, Kristin Cavallari was spotted arriving at Jimmy Kimmel Live! studios in Hollywood yesterday (October 15).

The Hills babe looked lovely in a sexy little black dress with black heels and a black handbag as she strolled past the waiting paparazzi.

Earlier in the day, Kristin was seen tending to her amazing physique, leaving a Yoga class at a Los Angeles fitness center.

Miss Cavallari seemed distracted as she texted away on her mobile phone, flashing a smile for the nearby shutterbugs.

Credit: Celebrity Gossip