This week, Mariah Carey and Nick Cannon's twins show their personalities -- and they could not be more different! How cute are they?
Pink and her baby Willow compare feet sizes, while Chris Colfer has one too many (he blames Kristin Chenoweth).
Plus, Paris Hilton shares a hysterically awkward flashback family photo, Kat Von D rids of Jesse James for good, and John Stamos and Dave Coulier have a mini "Full House" reunion ... with Santa.
Click "Launch Gallery" below to see the pics these celebs and more shared this week.