Rihanna may be busy with the launch of her new album, but she took some time out to vacation with her new guy, LA Dodgers player Matt Kemp. According to a source the pair were introduced by mutual friends.  “Rihanna wants the world to know that she is happy with Matt,” says an insider. So far, things between them are looking good.

Uma Thurman and her fiance, multimillionaire Arpad Busson, have called it quits. A source close to the couple confirms they split almost two months ago.

“Uma and Arki are still friends,” the insider says.The couple announced their engagement last June after Busson gave Thurman an eight-carat diamond surrounded by 20 smaller stones. Thurman, 39, and Busson, 46, were rumored to be wedding this past April, but those reports proved to be false.

Singer/songwriter Lisa Loeb gave birth to a baby girl in Los Angeles on November 29. She and her husband, Roey Hershkovitz, named their brand-new bundle of joy Lyla Rose. Lisa and Roey, who is the music production supervisor for The Tonight Show With Conan O’Brien, married on January 31, 2009. This is their first child.

Tiffani Thiessen and her husband, artist and actor Brady Smith, are expecting their first baby next May, her rep told PEOPLE exclusively.  “We are over the moon!” the couple said in a statement. “It’s something we’ve wanted for a long time and we are thrilled that it’s actually happening.” Thiessen, 35, and Smith have been married since 2005.

Project Runway host Heidi Klum is hoping to make a major change in her life. The sexy supermodel filed legal papers in Los Angeles County Superior Court on October 5 to take the last name of her husband, singer Seal. The mother of three, who is due to give birth to her fourth child this fall, will have the last name of Samuel if a judge signs off on the application by November 20.

Oliver Hudson, brother of actress Kate Hudson, is going to be a dad again. The Rules of Engagement star, 33, and his wife, actress Erinn Bartlett, are expecting a second child, the couple’s rep told US magazine. The two, who wed in June 2006, welcomed their first child, Wilder Brooks Hudson, in August 2007.

Insiders told E! News exclusively that Khole Kardashian and her NBA star boyfriend Lamar Odom are already considering tying the knot. Odom, a forward for the L.A. Lakers, and Khloé recently have been “talking about rings,” says a source close to the couple. Members of the Kardashian family are neither confirming nor denying the wedding plans or a date. A rep for both stars have declined to comment.

The planned marriage would be the first for Khloé, 25, and Lamar, 29, who had three children with his former longtime girlfriend, Liza Morales. They have a 10-year-old daughter, Destiny, and a 7-year-old son, Lamar Jr. (On June 29, 2006, Odom’s 7-month-old infant son, Jayden, reportedly died from SIDS while sleeping in his crib in New York.)

The Black Crowes are about to get another fan! Kate Hudson’s ex-husband, Chris Robinson is going to be a dad for the second time. The rocker is expecting a baby in early 2010 with his girlfriend, Allison Bridges, whom he’s been dating since 2007. This will be the couple’s first child. Chris also has a 5-year-old son, Ryder, with Hudson.

Its official counrty singer LeAnn Rimes and her husband of seven years, Dean Shermet have announced they are divorcing. “After much thoughtful mutual consideration, Deane [her husband's given name] and I have agreed to move forward with dissolving our marriage,” she said on her website. ”This decision was amicable and we remain committed and caring friends with great admiration for one another,” she continued. “Thank you so much for all of your continued love and support – it is deeply appreciated.”

Actress, Emily Blunt and The Office’s John Krasinski are engaged, Usmagazine.com has confirmed. “We can confirm that John and Emily are engaged,” a rep for both stars told  Us. The Devil Wears Prada star, 26, and Krasinski, 29, began dating in November 2008, but have been quiet about their relationship.