Bikini Photos of Rihanna With Friends in Vegas, Including Jay-Z and Jamie Foxx

Rihanna went to dinner in NYC on Thursday before heading to celebrity Independence Day hotspot Las Vegas for Fourth of July weekend. On Saturday she spent her day cuddling up to a guy by the Wet Republic pool in her hot pink bikini. At night, Rihanna changed into a revealing blazer wearing nothing but star-shaped pasties underneath for a party at Tao with Jay-Z and Jamie Foxx. Meanwhile in LA, Chris Brown was supposedly spotted making out with Amber Rose at Diddy's White Party, which can't make Amber's on again, off again boyfriend and Rihanna's good friend Kanye West all that pleased.