• Kate Beckinsale, taking off from New York’s John F. Kennedy airport along with husband Len Wiseman. While in the Big Apple, the actress made the media rounds, stopping by The Late Show with David Letterman for a chat.

• Ellen DeGeneres, enjoying a romantic night out with partner Portia de Rossi at Il Sole in West Hollywood. During their meal, the talk-show host opted for the lobster special while de Rossi ordered her favorite - white truffle pasta.

• Sienna Miller, playing the piano at the Chateau Marmont during a lively night out with boyfriend Rhys Ifans and a group of friends. A source tells us that “everyone was drinking wine and singing along” while the actress showed off her piano prowess. Says the source: “They were laughing, having a great time and singing ‘English’

songs.”

• The Hanson brothers -with their wives and children - arriving at popular Austin, Texas breakfast spot Las Manitas while in town for South By Southwest. Headed to a large booth in the back of the restaurant, the musicians and their families were trailed by a camera crew. (Reality show alert?)

• Comedy’s golden couple Jimmy Kimmel and Sarah Silverman, looking very much together - take that, Matt and Ben - while checking out a photography exhibit in Los Angeles. The pair stopped by Lost star Dominic Monaghan’s exhibition, “Happy Accidents …,” at the Hamilton Selway Fine Art gallery in West Hollywood.

• Ed Harris and wife Amy Madigan, catching up with director pal Neil LaBute after seeing his play Some Girl(s) at Los Angeles’s Geffen Playhouse.

• Good Charlotte guitarist/keyboardist Billy Martin and his new wife Linzi, cuddling as they chatted with his bandmates Benji and Joel Madden inside the twins’ DCMA Collective store opening party in Los Angeles. The couple of eight years confirmed they became Mr. and Mrs. Martin on March 1 and had just returned from their tropical honeymoon in time for the store’s opening. “It was awesome. We just got back from Fiji a couple days ago,” Martin told us.

• By JENNIFER GARCIA, JESSICA HERNDON, LISA INGRASSIA, MARISA LAUDADIO and ELIZABETH LEONARD

Celebrity Hot Spots.

Friday’s Caught in the Act >

Kate Beckinsale may love her feet - at least she says her husband does - but when it comes to breasts, she’d like Queen Latifah’s.

Asked by Glamour in its May issue if she could switch bodies with someone for a day, who would that be, the star of the new thriller Vacancy replies, “Someone with gigantic real breasts, like Queen Latifah.”

Getting more off her chest, Beckinsale, 33, says, “I’m so fascinated by breasts because my mother didn’t have them either. If I had them, I’d run up and down a flight of stairs!”

Also asked to select her favorite body part of her own, she says, “I remember being 13 and sobbing in a shoe store because I had these freakishly long feet. Now my husband thinks I’ve got the most attractive feet ever! They just arrived too soon.”

Beckinsale’s husband is Underworld director Len Wiseman, whom she married in 2004. Before that, she was with actor Michael Sheen, the father of her 8-year-old daughter, Lily - and one of the stars of Underworld.

Explaining how she, her ex and Wiseman have all remained good friends, Beckinsale says, “From the beginning, all three of us put Lily first, and then it was kind of easy. … I give enormous credit to Michael and Len for they way they’ve handled things.

“As I result, I have an amazing child with three great parents. I feel slightly sorry for kids who’ve only got two!”