In her new movie “The Runaways,” she gets to play a rock star, but Kristen Stewart says she’ll stick to acting rather than branching out into a music career.

The “Twilight” actress told press, “If I had that drive…It could never be fun for me to be a rock star because I’m not one.”

And playing icon Joan Jett was a bit nerve-wracking, according to Stewart, because she wanted to make sure she did the role justice.

Sure, she’s one of the hottest actresses in the world, but that didn’t stop Emma Watson from getting nervous before her Brown University stage debut.

The “Harry Potter” actress starred in the campus production of “Three Sisters,” and had plenty of butterflies in her stomach prior to the gig.

An insider told press, “Emma was nervous beforehand but was faultless in her role. She has been juggling coursework with rehearsals and learning lines so she’s had a lot on her plate.”

She’s been relegated to the Reality TV genre for most of her career, but earlier this week Heidi Montag got a cameo on a big time movie set.

The “Hills” babe filmed her bit part on “Just Go WIth It,” starring Jennifer Aniston and Adam Sandler, and can’t stop raving about the experience.

Heidi tweeted, “I just had THE BEST day of my life filming my first comedy movie!!!!
It was beyond what I could have ever dreamed!!!!!”

Gearing up for her co-hosting gig on “The View,” Kate Gosselin was spotted leaving her New York City hotel this morning (March 17).

The “Jon and Kate Plus 8″ mommy looked snazzy as she stepped outside in a powder blue scoopneck top with dark trousers and her newly re-lengthened coif.

And while she says she’s putting her all into the “Dancing with the Stars” gig, some say Kate isn’t showing any love to the rest of the cast.

Making the most of her time in Austin, Texas, Ashley Greene was spotted at the premiere of “Skateland” at the 2010 SXSW Festival yesterday (March 16).

The “Twilight” babe looked to be in good spirits as she arrived at the Paramount Theater, sporting a black jacket/flowered blouse/black trousers combo.

Ashley has been at the iconic indie festival all week, enjoying the films and checking out the plethora of bands that travel from all over the world to get discovered.

Stepping out for a lovely evening, Eva Longoria and Tony Parker were spotted dining at Beso restaurant in Los Angeles last night (March 16).

The “Desperate Housewives” babe and her NBA basketball beau looked blissful as they made their exit to find a swarm of shutterbugs waiting.

Earlier this week, Eva celebrated her 35th birthday with a trip to Miami, Florida where she was pampered all the way.

Treating herself to a delicious smoothie, Rachel Bilson was spotted hitting up Jamba Juice in Hollywood yesterday afternoon (March 16).

The “Last Kiss” actress juggled her two beverages as she strolled back to her car, ignoring the nearby paparazzi.

As for her fiance Hayden Christensen, Rachel told press she’s not surprised that people need to grab a dictionary when reading his interviews.

Taking care of her growling tummy, Kristin Cavallari was spotted grabbing some lunch in West Hollywood yesterday (March 16).

Joined by a gal pal, the “Laguna Beach” babe looked simple-yet-sexy in a casual black minidress with beige peep-toe heels and black sunglasses.

Following a lengthy lunch, Kristin and her gal pal made their way over to Beverly Hills to do a little retail therapy romp.

The night before, Kristin was spotted out and about with a group of friends, including her “Hills” costar Audrina Patridge.