Celebrity / Rihanna Nonstop Party Girl Rihanna Spotted at Kanye's Friends fear she's slipping off the rails By Evann Gastaldo, Newser Staff Posted May 25, 2009 8:27 AM CDT Copied Musicians Timbaland, Kanye West, Robin Thicke, Rihanna, and Chris Brown appear backstage after MTV's "Total Request Live" show at the MTV Times Square Studios in 2007. (AP Photo/Jeff Christensen) Who's the latest in a string of new guys rumored to be dating Rihanna? Kanye West. This weekend—days after the rapper reportedly split with girlfriend Amber Rose—Rihanna was spotted leaving his New York apartment in a particularly sexy outfit, the Sun reports. Meanwhile, friends are worrying about Rihanna’s excessive partying: “People around her think she needs professional help before it gets out of control,” said a source. (More Rihanna stories.) Report an error