Ashlee Simpson's bond with mother-in-law Diana Ross: Her 'best advice' as she returns to the stage

Ashlee Simpson doesn't just have a music icon as a mother-in-law, she has a true supporter in Diana Ross. "She's got my back no matter what," Simpson said of the legendary singer. "And her Vegas shows are fabulous." You may also like Ashlee Simpson drops extended 'Autobiography' and breaks Millennials Jessica Simpson to light up Las Vegas with one-night-only performance this fall Kylie Jenner poses in see-through lace and low-rise jeans in intimate fall look Married to Evan Ross since 2014, Simpson has become a part of one of entertainment's most iconic families. With her own . . .