Rihanna, Brooklyn Decker
Credit: Jeff Moore / Splash News

Battleship stars Rihanna (in Stella McCartney) and Brooklyn Decker struck a pose at Cineworld in London for an exclusive screening made available only to winners of a Captial FM radio contest. "London yesterday, Madrid today, and Tokyo tomorrow.. life is kinda good right now... sleep deprived, but oh so good," Decker tweeted, describing her jet-setting Battleship promo tour. Click through the gallery to see Miranda Kerr, Emma Roberts and more stars at yesterday's hottest events.