Los Angeles. The performer was seen in the company of both his wife, 37-year-old Ashlee Simpson, and half-sister, 49-year-old Tracee Ellis Ross, during the event and posed for several photos with his friends and family.
Several other figures from the entertainment industry, such as Terrence Howard, also showed up for the celebratory party. Ross kept it casual in a slightly oversized green shirt that was tucked into a pair of black pants.
Simpson, 37, opted for a black dress that showed off her sculpted arms at the party. The singer's gorgeous blonde hair cascaded onto her shoulders and added a bit of brightness to her look.
Ellis Ross wore a sleeveless black shirt underneath a pair of stark white overalls. Ross' birthday party took place just a few days before he celebrated his eighth anniversary with Simpson.
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