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TISDALE: U.S. actress Ashley Tisdale is among the stars who appear in Allure magazine's annual nude issue.

Tisdale is best known for her work in Disney's "High School Musical" and "Suite Life of Zack & Cody" franchises.

Zap2it.com posted a black and white photo of Tisdale Monday as she appears in the Allure layout. The actress was photographed from the side with her long hair halfway down her back, and only her bare buttocks and a glimpse of one breast under her arm can be seen.

"I'm 25, almost 26, but people think of me as much younger because I look young," she is quoted as saying in the magazine. "Being in this shoot was me saying: 'I'm not just the young girl everybody thinks I am. I'm actually a woman.'"

Zap2it.com said Keri Hilson, Kaley Cuoco and Bridget Moynahan also appear in the issue.

BENICIO DEL TORO: Hollywood actor Benicio del Toro and model Kimberly Stewart, who are not a couple, are expecting a child together, a source told People.com.

Details regarding the pair's relationship were not reported, nor was the baby's anticipated due date.

The source said del Toro "is supportive and both [he and Stewart] are very excited" about the baby.

Stewart is the daughter of musician Rod Stewart.

Del Toro's film credits include "The Usual Suspects," "Basquiat," "The Funeral," "Excess Baggage," "Traffic," "21 Grams," "Che" and "The Wolfman."

People.com said representatives for del Toro and Stewart did not respond to its requests for comment on the story.

STEVE CARELL: NBC says Steve Carell's final episode of the U.S. sitcom "The Office" will be 50 minutes long.

Carell has played boss-from-hell Michael Scott on the Americanized version of the British series for seven seasons.

He is due to depart the show April 28. The season finale, which is expected to at least hint at Scott's replacement as regional branch manager of Dunder Mifflin, is to air next month.

NBC said the April 28 episode of "Parks and Recreation," which is to be broadcast after "The Office" will be 40 minutes long.

DONNA SUMMER: Bravo says Leona Lewis, Donna Summer, Jermaine Dupri and Taio Cruz are to be guest judges on its new U.S. songwriting competition series, "Platinum Hit."

Natasha Bedingfield and Ryan Tedder are also to serve on the panel for the show, which is to premiere on the cable network May 30.

Recording star Jewel is the series' host and songwriter Kara DioGuardi is the show's head judge.

"Platinum Hit" follows 12 up-and-coming musicians as they battle through a series of songwriting challenges testing their creativity, patience and drive, Bravo said in a synopsis.

The winner will walk away with a $100,000 cash prize, publishing deal with Sony and a recording deal with RCA/Jive.