Rihanna shared sexy never-before-seen snapshots of herself getting ready for her animalistic music video, "Where Have You Been," on Facebook this weekend. RiRi's obviously not shy about showing off her hot bod! Plus, on Sunday Kim Kardashian tweeted an edgy pic from her Vogue Italia shoot, and Kylie and Kendall Jenner sported some rather controversial accessories on the red carpet Saturday night.

Drew Barrymore, who has yet to confirm her pregnancy, stepped out Thursday sporting an interesting ensemble that made her resemble the Mad Hatter from "Alice in Wonderland." Then, that evening, she glammed it up, showing off her growing baby bump in an elegant Chanel frock. Plus, Kanye West did not look happy as he posed for pics with Kim Kardashian at the launch of her new jewelry line, and we're taking a look at some of the best celeb Twitpics of the week. Let us know on Facebook or Twitter which are your favorites — and why!

Isabella, her boyfriend, and new tattoo. (Coleman-Rayner)

Tom Cruise may play a tattoo-covered rock star in his new movie, "Rock of Ages," but his daughter Isabella really got inked. The 19-year-old debuted the new marking — a peacock feather on her left forearm — during a lunch date with her boyfriend, Eddie Frencher, 23, at a Los Angeles-area Subway on Wednesday. The tattoo is just the latest way Cruise's oldest daughter, who he adopted with ex-wife Nicole Kidman as a baby, has asserted her independence. Isabella recently moved out of her family's Beverly Hills mansion and into an apartment with Frencher, who is also a Scientologist, reportedly in downtown Los Angeles' seedy Skid Row.

Snooki might seem like she has it all — a hit reality show, a great fiance, and a baby on the way — but the reality star opens up to V magazine about how she's been bullied her entire life, and talks about how her skeptics will be surprised by her parenting skills. Plus, Lindsay Lohan stepped out for the A&E Upfronts in a sparkly minidress on Wednesday, and Mariska Hargitay and Ali Wentworth (who are both married to men) shared a smooch on the red carpet.

McClendon-Covey. (Mark Davis/Getty Images for LOGO)

Funny lady Wendi McClendon-Covey has had plenty of co-stars over the years, but the biggest one has to be Jennifer Lopez, who plays her friend in "What to Expect When You're Expecting." But just because she is the most famous, it doesn't mean she was the biggest diva. The "American Idol" judge is "completely sweet," McClendon-Covey, who broke out in last year's "Bridesmaids," tells omg!. "Just a nice girl who is working really hard and just happens to have 12 jobs at the moment … But yeah, it is kind of weird when someone is larger than life in the press and you meet them and they're just a regular, sweet person. The rest of the stuff is all invented and embellished."

The comedienne even got to meet Lopez's 4-year-old twins, Max and Emme, when they came to the Atlanta set last August, just weeks after Lopez and Marc Anthony announced their split. "[The kids] are kittens!" gushes McClendon-Covey, 42. "With that golden skin, they're ridiculous. So cute."

Olivier Martinez will star in a new Yahoo! series. (Andreas Rentz/Getty Images)

Despite the paparazzi photos we've seen, Olivier Martinez's life isn't all about frolicking on the beaches of Malibu with his fiancee Halle Berry and her 4-year-old daughter Nahla. As fans of "Unfaithful" will remember, Martinez is an actor, too! And he's just lined up his next gig: Martinez will star in a new fictional crime video series exclusive to Yahoo! this fall called "Cybergeddon" about the growing threat of cybercrime. The hunky French actor will play the bad guy, cybercriminal Gustov Dobreff, and Missy Peregrym ("Rookie Blue") plays the FBI agent in charge of capturing Dobreff. Manny Montana ("Breakout Kings") and Kick Gurry ("Speed Racer") portray members of the FBI team in the project, which will be financially backed by Dolphin Digital Media in a deal brokered and packaged by Creative Artists Agency. As the press release for the project explains, "In a world where everyone is connected, everyone is at risk." Ooh, sounds dramatic!

The resemblance between India Eisley and Angelina Jolie is striking, to say the least, so it's no wonder that the 18-year-old "The Secret Life of the American Teenager" actress was just cast to play the younger version of Angelina's character in the upcoming flick "Maleficent." Plus, Jessica Simpson tweets about her new bundle of joy, and Kate Middleton shows some leg in a sexy dress with a high slit.

Lohan in her much-hyped Glee appearance. (Adam Rose/FOX)

She may have had some difficulty getting to the set on time, but Lindsay Lohan managed to pull off her guest appearance on "Glee" — and now stills from the episode have been released. Although fans don't get to see her interact with any of the show's stars, the actress is shown in a scene with Rex Lee, who like Lohan, portrays himself in the May 15 episode. The two actors, along with gossip blogger Perez Hilton, star as judges at Nationals, where the kids from the McKinley High show choir are taking on their nemesis Vocal Adrenaline. "Glee was fun to do!" Lohan tweeted on Monday. "It made me want to live in a world of musicals where people always just burst out into song & dance!"