People.com Celebrity Mismatched or New BFFs? The Oddest Meetups Is Justin really hanging with K-Fed? What does the Duchess of York have in common with Rihanna? Find out. By Brian Orloff By People Staff Published on November 14, 2007 03:50 PM Share Tweet Pin Email 01 of 10 K-FED & JUSTIN Chris Polk/FilmMagic The first (and only!) meeting of the Britney Spears Ex- Club is in session. Kevin Federline enjoys a close encounter with the man of the evening as Justin Timberlake arrives for his private concert in February at the Avalon in Hollywood. 02 of 10 POSH & DITA ANG/Fame Pictures They're both immaculately attired style mavens, but what did soccer mom Victoria Beckham and burlesque queen Dita Von Teese talk about when they met at Paris Fashion Week in October? 03 of 10 AMY & THE OLSENS Dave M. Benett/Getty One of these women is not like the other(s) ... (Hint: It's Amy Winehouse). The "Rehab" singer gets sandwiched between Mary-Kate and Ashley Olsen during a style event in London in October. 04 of 10 BONO & PRESIDENT BUSH Jim Young/ Reuters/ Landov Outspoken about social causes and committed to campaigning against AIDS in Africa, the U2 frontman finds an unlikely political ally in former President George Bush during a September ceremony at the National Constitution Center in Philadelphia. 05 of 10 RIHANNA & FERGIE Jano/Starmax One's new pop royalty, the other's British royalty. Rihanna and the Duchess of York, Sarah Ferguson, team up at a UNICEF benefit in New York in October. 06 of 10 THE HOFF & STEVE-O Jean-Paul Aussenard/WireImage What does Baywatch star David Hasselhoff and Jackass daredevil Steve-O have in common? Besides being excellent self-promoters, they also attended Mercedes Benz Fashion Week in Los Angeles ... but that's about all they have in common. 07 of 10 TYRA & ELMO Mathew Imaging/FilmMagic The talk show host and her furry friend are both daytime TV stars with big personalities – but only one likes to take the convo down there. In June, female-issue champion Tyra Banks and Seasme Street mascot Elmo bonded backstage at the Daytime Emmy Awards. 08 of 10 OZZY & PARIS Mario Anzuoni/ Reuters/ Landov What happens when an heiress meets the prince of darkness? Friendship, apparently. Ozzy Osbourne and Paris Hilton keep it congenial at a Spike TV event in October. 09 of 10 FERGIE & STEVEN TYLER Lucas Jackson/ Reuters/ Landov The singers share a wild moment, going cheek-to-cheek – and almost lip-to-lip! – during a duet at Fashion Rocks in New York City in September. 10 of 10 GEORGE & TILDA Goff/INF The long and short of it: George Clooney and his Michael Clayton costar Tilda Swinton turned heads up and down during a photo call at the Venice Film Festival in August.