Nicole Richie and Benji Madden Hugging in LA | Pictures

Benji Madden gave his sister-in-law, Nicole Richie, a ride to work on Monday. Nicole gave him a hug before heading to her latest day of work on Fashion Star at a Hollywood studio space. The show has been taping its second season since mid-October, but despite being back on set alongside Jessica Simpson and John Varvatos as a mentor, Nicole has also kept equally busy during her time away from work. Earlier this month, she made a brief trip to NYC for Teen Vogue's Fashion University, where she shared her wisdom on the industry with up-and-coming designers. Last weekend, she hit up a Halloween party with some of her best friends in matching Troop Beverly Hills costumes — check out our picks of the best celebrity Halloween costumes over the years!