Born to Peter Michael Escovedo III and Karen Moss on Sept. 21, 1981, Nicole was adopted at age 9 by R&B singer Lionel Richie and his then-wife Brenda Harvey Richie. (The pair were married from 1975 until their divorce in 1993.)

The iconic duo journey back to the primordial days of reality TV, reminiscing about their pioneering show and their new Peacock reunion special, ‘Paris & Nicole: The Encore.’

Nicole Richie has revealed she always knew Joel Madden would be her husband. The reality TV star has admitted she believed she'd marry him before they'd ever spoken, explaining she felt an instant sense of connection with him after they were set up by friends in 2006.

As much as Nicole Richie and Paris Hilton have grown up in the years since their breakout reality show “The Simple Life,” which helped revolutionize reality TV in the early aughts, the iconic duo are proving that age really is just a number.