Celebrities took to Twitter  this week and gave us a peek at their family and friends, latest movies, and lazy days off. Demi Moore  and Peter Facinelli  both snapped behind-the-scenes pictures from their respective sets. Rachel Zoe  relaxed away from work, and Jessica Simpson  got sweet with a friend's baby — click through to see all the shots, and don't forget to follow us on Twitter  for exciting news and exclusive photos!
Jessica Alba  had dinner with her family  while on vacation in Provence.
Nina Dobrev  did interviews with her Vampire Diaries costars .
Jack of All Trades
Martha Stewart  prepped for her painting demo  backstage at The View .
Bryan Greenberg got to work on his album .
Man of the Cloth
Russell Brand  played dress up inside a church  while filming Arthur.
Cash Warren snapped his daughter, Honor , getting down their laundry in France.
Jared Leto  chopped his famous locks .
Jenny McCarthy  captured Evan with a gorilla at the zoo .
Working Up a Sweat
Sarah Silverman got sweaty after an intense yoga class .
Kim Kardashian  was impressed by Bruce Jenner's new car .
Ryan Seacrest  showed off thousands of American Idol hopefuls  in New Orleans.
Rachel Zoe  was lucky to enjoy a lazy Saturday .
Demi Moore  snapped a picture of her costar Miley Cyrus  on the set of LOL .
Jessica Simpson  bonded with a friend's child .
Peter Facinelli  played a pickpocket  on the set of Loosies, which he wrote.
Paris Hilton  had dinner with a pal  in France.
The fans at Regis and Kelly went wild for Zac Efron .
Lauren Conrad  snapped Frankie Delgado on a hike .
Kanye West  wasn't impressed  by the size of his jet.
Justin Bieber  shot something for MTV .