Lots of our favourite celebrities were busy tweeting away this week sharing pics of their family, friends, and pets as Halloween celebrations got underway. Nicole Richie sipped an early morning beverage with Ryan Seacrest while Lady Gaga spread peace with Sean Lennon. Sofia Vergara got into character and Kim Kardashian chilled with her nephew—click through to see all the pics and don't forget to follow us on Twitter for exciting news and photos!
Katie Holmes attended the premiere of The Extra Man in NYC yesterday. She posed with her co-stars Kevin Kline and Paul Dano, looking radiant with curled hair. Katie wore a bold striped red and blue dress to the premiere. Guests at the premiere last night included pregnant model Doutzen Kroes and Sean Lennon. 
To see more of Rihanna, Prince, and Claudia at the Chanel show, just read more
