Rihanna, Jay-Z and Kim Kardashian lead the stars on Forbes' billionaire list

Kourtney Kardashian reminisces about her drunken Las Vegas wedding to Travis Barker one year later

Khloe Kardashian and Kris Jenner's side-by-side Hidden Hills mansions seen in new aerial footage

Kim Kardashian and Katy Perry Bond Over Their "Ugly Cry Face"