Zac Efron is currently promoting Dr. Seuss’ The Lorax, (he voices the character of Ted), and when he sat down with Access Hollywood Live to discuss the upcoming film, he also dished on his pal, Rumer Willis.

After Rumer's mother Demi Moore was rushed to the hospital for smoking a mysterious substance and going into convulsions, Zac revealed that he has spoken to the 23-year-old starlet and she's handling the situation as best as she can.

“She’s doing OK, she’s doing fine," he told Access. "It’s tough what she’s going through right now, but she seems to be handling it really well." It was previously reported that the two were dating, but those rumors were recently shot down when we spotted Zac going on a dinner date with Lily Collins!

Looks like Zac Efron has a new girl! The 24-year-old hunk took new "it" girl Lily Collins on a date Saturday night at LA's STK steakhouse.

We spotted the two trying to slip out the back door and while we just barely caught Zac slipping into a chauffeured SUV, we got a surprised-looking Lily as she made her way to the same car.

Collins, who turns 23 next month, will appear in her biggest role to date as Snow White in the upcoming Mirror Mirror, while Zac has three big films coming out this year -- The Paperboy, The Lucky One and another yet-untitled movie.

The pair were trying to avoid attention, according to our photographers at the restaurant last night: "Zac literally ran to the car and jumped in, leaving Lily behind. But Lily kept her cool and took her time. She wasn't as worried about not being seen by us. She took her time. She probably didn't want to trip in her heels!"

Collins was recently linked to Taylor Lautner who, according to reports, is back together with his high school sweetheart. Zac was rumored to be dating Taylor Swift just a few weeks ago, but most sources shot down those rumors as false.

Maybe Lily is Zac's REAL girlfriend ... seems like a relationship he wants to protect!

On Tuesday evening Zac Efron attended the Lakers game at the Staples Center in Los Angeles, and the hunky actor was in a great mood when we spotted him in the parking lot afterwards. Kobe and company beat the Phoenix Suns 99-83, so there were lots of happy basketball fans in LA last night!

P.S. Is it just us, or does Zac look super tan? Think it's from a vacation or a tanning bed?

Looks like Nicole Kidman's character wants to take a bite out of hottie Zac Efron in this new movie poster for The Paperboy. We don't blame her!

The movie, also starring Matthew McConaughey and John Cusack, revolves around an investigation surrounding a murder in order to free a man on death row.

Kidman's role was originally given to Modern Family's Sofia Vergara, but the sexy Latina dropped out due to her television commitments. Zac Efron's role was originally for Tobey Maguire.

Director Lee Daniels was forced to delay production while he looked for new actors. Hopefully Zac and Nicole prove their worth!

Zac Efron is showing off his bulging biceps in the new trailer for The Lucky One. After watching the former High School Musical hottie in action, we feel like the lucky ones!

In the flick, Zac plays a soldier injured in Iraq who returns home in search of a woman he credits with saving his life ... via a photograph. Lucky actress Taylor Schilling plays his love interest. Plus, there are a few shirtless scenes with Zac ... which we don't mind.

The Lucky One, also starring Gwyneth Paltrow's mom Blythe Danner, hits theaters next April.

Seeing as almost everyone in Hollywood appears in the upcoming romcom New Year's Eve, the premiere at Grauman's Chinese Theatre last night packed almost as much star power as the Oscars!

Zac Efron, Josh Duhamel, Michelle Pfeiffer, Katherine Heigl, Sofia Vergara and Abigail Breslin came out to support their film, and a handful of other famous faces (including a very sparkly and possibly pregnant Fergie, Ryan Seacrest and Mark Salling) hit the red carpet as well. Fergs (and her bandmate) recently hinted that she was eager to start a family, so is it possible that she's got a bun in the oven?

And the Black Eyed Peas singer wasn't the only one to catch our attention on the red carpet! Ashton Kutcher posed for photos with Glee's Lea Michele, and we're not trying to start a hookup rumor here, but it seems like these two are quite cozy together. Wonder what Demi would say about this?!

Check out more pics in the huge gallery below, and let us know what you think!

Ashley Tisdale is speaking out about speculation over recent photos of her and fellow High School Musical star Zac Efron.

Efron, 23, joined Tisdale to celebrate her 26th birthday July 2, and photos of the two looking very close raised rumors that they were an item. In December of last year, after four years together, Efron split from their co-star, and Tisdale's close friend, Vanessa Hudgens. Hudgens, 22, was not at the July 2nd soiree.

But Tisdale, who rocked a Temptu spray tan, is denying that she and Efron are an item. She said via Twitter on Tuesday:

"Don't believe all pictures. ... I had such a great birthday party with my friends, Family, and BOYFRIEND Scott. I will not let stupid rumors ruin all the fun we had! Xoxo"

Check out X17's exclusive video below to see Zac and Ashley embracing at her party, where they sipped Heineken Light and VnC Cocktails. The two have known each other for years ... what do you think of their interaction?

After the jump, see a pic that Ashley Tweeted of her and her boyfriend at the party.

Ashley Tisdale partied with her High School Musical co-star Zac Efron Saturday in Malibu, celebrating her 26th birthday (she's only a year older than Lindsay!).

Body language experts might say that these two looked like a little more than friends as Ash had her legs wrapped around her BFF Vanessa Hudgen's ex-boyfriend's neck. Hmm ... wonder what 'Nessa thinks about these pix!

Oh, and check out Ashley's birthday dance below ...