Also in LA, Alec Baldwin and wife Hilaria Thomas attend the premiere of The Rise of the Guardians at the American Film Institute Festival, as Ewan McGregor attends the Impossible screening at the annual movie festival too.
Meanwhile, Lady GaGa shows off her cleavage in a halter-neck bikini top, along with the caption: "I fear beachwear but a Starlight reminded me miller light goes all the way."
In Barbados, Rihanna shares a bikini snap of herself on Twitter along with the caption: "We havin a celebration.... WE HAVE AN ALBUM!!! #UNAPOLOGETIC."
And in London, X Factor judge Nicole Scherzinger heads to C Restaurant in London after last night's live results show, and finalist Rylan Clark and former finalist Jade Ellis kiss backstage at G-A-Y after Ellis's performance at the club.