Elsie Hewitt's giving more updates about new motherhood ... including sharing a glimpse of her tight abs with fans -- as well as the adult diaper she's rocking!

Michael Pitt has been arrested on sexual abuse charges ... with authorities saying he’s being accused of sexually assaulting his then-girlfriend and later attacking her with a couple blunt objects.

Ellen DeGeneres shares a heartfelt tribute to Tayt Andersen-- a young boy born with only half his heart -- after he passed away on Friday.