Charlize Theron has been keeping her head under wraps since stepping out of a hair salon last Wednesday, and now we know why! Turns out the actress has shaved off her blond locks for a movie role. Check out some other women in Hollywood who have shaved their heads for a part. Plus, David Arquette has a Bar Mitzvah while in Israel taping his new show, "Mile High," for the Travel Channel, and Stacy Keibler and George Clooney enjoy a romantic Italian getaway.

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Lohan in character as Elizabeth Taylor on the set of Liz & Dick (Splash News)Lindsay Lohan escaped serious injury when she crashed her Porsche into an 18-wheeler on the Pacific Coast Highway last week. However, the accident never should have occurred because she wasn't supposed to be driving.

Sheryl Crow stunned at the Tony Awards Sunday night, just days after revealing that she had a benign brain tumor, but the 50-year-old singer assures her fans that she is OK! Check out her gorgeous, age-defying gown. Plus, find out about the rough weekend the "Jersey Shore" cast had, as well as the racy ensemble Selena Gomez sported for the launch of her fragrance.

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As if new episodes of reality TV favorites like "The Bachelorette," "The Real Housewives of New York," "So You Think You Can Dance," and "Keeping Up With the Kardashians," weren't enough, even more women in catfights, people declaring they're not there to make friends, and good-looking twentysomethings competing for money, fame, and love await our DVRs this summer. Several reality series will premiere in the next three months, proving once again that the genre isn't going away any time soon!

For those of you too young to remember, TV was once full of scripted shows and real actors. It wasn't until the phenomenal success of "Survivor" and "Big Brother" in 2000 that networks realized they could make successful programs a lot more cheaply. For instance, reality shows cost about $1 million an hour, or one-half to one-third as much as scripted shows, according to The New York Times. So by 2009, the newspaper reports, reality shows made up more than one-fourth of all primetime programming on

Jesse Grant/WireImageWENNSee that woman who's playing on her cell phone while you try to make small talk? She might not be ignoring you. She could be tweeting every cheesy thing you say.

Lohan. (Splash News)Lindsay Lohan had quite a scare on Friday when she landed herself in the hospital after ramming her Porsche into an 18-wheel truck while traveling on California's Pacific Coast Highway. According to TMZ (which has photos of the crash), the actress rear-ended the big rig around noon, totaling her pricey rental car and leaving both herself and her personal assistant bloodied and battered. An ambulance was called to the scene, but the 25-year-old refused to be transported to Santa Monica UCLA's emergency room (she found another mode of transportation), although her assistant, who was in the passenger seat, did accept a ride from the paramedics. After a few hours in the hospital, Lohan was given a clean bill of health and released -- and she immediately headed to the set of her Elizabeth Taylor made-for-TV Lifetime movie, "Liz & Dick." In a statement, Lohan's rep said, "She is fine and was released less than two hours later ... Fortunately, no one was seriously injured in the accident."

Travolta was all smiles on Thursday night. (Kevin Winter/Getty Images)Just weeks after four men accused John Travolta of sexual battery, the actor stepped out for the first time — and with millions of eyes on him. At the AFI Awards in Los Angeles on Thursday night, Travolta stood up on the stage in front of A-listers like Jennifer Aniston, Julia Roberts, and Meryl Streep to honor Shirley MacLaine, who received the institute's 40^th Life Achievement Award. Looking dapper in a tuxedo, the 58-year-old, who did not sit in the audience or walk the red carpet at the event, showed no signs of uneasiness or embarrassment during his speech.

Sofia Vergara was spotted with her ex-beau Nick Loeb on Thursday night in NYC and the pair certainly looked like they were back on! Check out these other on-again, off-again couples who have weathered the storm and gotten back together after splitting up. Also, Katy Perry surprised fans with a special treat at a screening of her flick "Katy Perry: Part of Me," in London on Thursday, 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!

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