Nicole Richie and Paris Hilton shared a laugh at a party to celebrate the launch of Charlotte Ronson's latest I Heart Ronson line for JC Penny at the Roosevelt hotel in LA last night. The former The Simple Life costars are rarely photographed together in recent years, though this makes two nights in a row for Paris and Nicole as they both attended the Britney Spears concert on Monday as well. Paris even tweeted to Nicole after the bash using their cutesy nicknames for each other, saying, "Bill, great seeing you tonight at #Iheartronson. You looked so beautiful! Love you. Love Sill xoxo." Paris was home in time to watch herself on Lopez Tonight, and overall she seemed to be in good spirits despite confirming her split from boyfriend Cy Waits earlier in the day. Ashlee Simpson also attended last night's soiree amid her own love life rumors. Ashlee Simpson was spotted kissing Vincent Piazza and holding hands with the Boardwalk Empire star during an outing in NYC last week.

George Clooney and Elisabetta Canalis have split after getting together in 2009. The duo released the news in a joint statement today. They said, "We are not together anymore. It's very difficult and very personal, and we hope everyone can respect our privacy." The love affair may be over, but we're taking a look back at George and Elisabetta's years-long romance from sweet motorcycle rides to steamiest red-carpet moments. Click through to see the former couple's most memorable moments!

Terry Richardson snapped Jennifer Aniston and her boyfriend, Justin Theroux, last night during an evening out in NYC! Jennifer, Justin, and Terry all got together for dinner in SoHo, and the happy couple managed to fit in some PDA between courses. It's a big week for Jennifer, who's in the Big Apple to do press for her upcoming movie Horrible Bosses. It was announced that Jennifer Aniston will receive a star on the Walk of Fame, and she's now settling into her new $4.9 million penthouse apartment in Greenwich Village.

Katie Holmes and Suri Cruise explored the retail offerings of the Bal Harbour stores in Florida yesterday afternoon! Little Suri inspected the racks like a pro before getting some change from her mom to throw into a fountain. The girls are in Florida taking advantage of the local shopping opportunities while dad Tom Cruise works on Rock of Ages. We got a look at a hot Tom Cruise shirtless moment last week when the first still of him in the character of Stacee Jaxx was released. Tom kept his top on for a fun Father's Day with Katie and Suri, including an afternoon yachting with his family. It was an adults-only evening for Katie and Tom on Friday, though, when they went out clubbing in Miami with his castmates Julianne Hough and Malin Akerman. There was also time over the weekend for a Katie Holmes bikini day when she and Suri hit the beach for a swim in the Atlantic Saturday.

Avril Lavigne jumped off the deck of a yacht sporting a hot pink bikini off the coast of St. Tropez today. Avril made an appearance at last weekend's MuchMusic Awards in her native Canada, where she showed off her usual punk style. After releasing her most recent album, Goodbye Lullaby, in March, Avril is apparently already working on new music, which she has said will have a more pop vibe. Avril and boyfriend Brody Jenner are going strong, though this vacation is all about spending time with her girlfriends, sipping on drinks, and showing off her bikini body on the luxurious accommodations.