Nice try: The ‘Housewives’ sister act

Although it’s the holidays, there is no peace in New Jersey for the Manzo family.

The feuding reality clan featured on “The Real Housewives of New Jersey” has not found harmony, despite reports that all is fine between sisters Caroline and Dina.

“They have not kissed and made up. In fact, the ladies are still at war,” a source close to the production tells us.

The show started filming its sixth season Thanksgiving weekend, says another source, and everyone behaved the first few days of filming.

“The season is starting slow as always, everyone making nice,” says our source. “But that won’t last.”

Expect Dina to stop playing nice right away. She quit after the first season because she couldn’t work with her sister. But since Caroline recently left the show, Dina has returned.

Dina has been telling pals that everything is fine within the family and that Caroline and she are “best friends” again.

But we hear Caroline has accused Dina of spreading lies to boost her popularity before she returns to the spotlight.

“Don’t believe a word of it. They did not make friends,” a Manzo family friend tells Confidenti@l. “Dina has no interest in family, just fame. It is very hurtful. She has made zero attempt to be with the family.”

In October, Caroline Manzo announced her departure from the show on her blog: “Going back to film another season of ‘Housewives’ would only make me a hypocrite. For me, peace and integrity cannot be bought with money or fame.”

Caroline’s beloved Jack Russell terrier, Austin, “the king of the house,” died on Christmas Day. He was 17 years old. Dina and Caroline didn’t even speak on Christmas Day about the matter.

We also hear that the two additions to the reality show are stirring things up. Twin sisters Nicole and Teresa Napolitano have joined the series and are rubbing other cast members — Teresa Giudice and Melissa Gorga — the wrong way.

@MileyCyrus/via Twitter

Miley Cyrus and model Cara Delevingne carry out a tongue-lashing.

TONGUE IN CHIC

Miley Cyrus’ overexposed tongue has found its way into the mouth of supermodel Cara Delevingne. The model and the musician, both 21, swapped saliva on a sofa with a rainbow beaming from it. “@Caradelevingne LOVE!!!!! We finally got the filmed developed Mush,” Miley tweeted to her 16.2 million followers.

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Britney Spears was jumpy for the launch of her Las Vegas show.

BRIT A SHAKY PLAY IN VEGAS

Britney Spears finally started her Las Vegas residency Friday and was nervous, a source tells Confidenti@l. The “Toxic” singer (l.) had a practice run for her family Thursday, and shared a pic of herself while rehearsing on Instagram, saying, “I’ve got chills.” Fans who see her will hear hits like “Till the World Ends,” “Slave 4 U” and “Oops … I Did It Again.” The show will have a two-year run at Planet Hollywood.

MUSIC GOES POP SECRET

Beyoncé shocked fans when she dropped her “secret” album, and now another diva wants to do the same thing, except this one cannot keep her beautiful voice quiet. “Mariah has been telling everyone how she wants to drop a surprise album,” laughed one music insider about ­Mariah Carey’s effort. “It is hilarious because nothing Mariah (above) does is low-key. Can you imagine her filming a video without anyone knowing? Or Mariah sneaking into a recording studio in a hoodie in the dark?” Your diva-ness is why we love you, Mariah!

BIG PLAY WITH BEY

Long-haired Beyoncé shared a quiet moment with daughter Blue Ivy Carter on Instagram. Blue, looking adorable with a flower in her hair, sits outside in a tropical paradise with her diva mommy.

Michael Kovac/Getty Images

Tori Spelling, above with hubby Dean McDermott, is ignoring a report saying he was unfaithful, says an insider.

SPELLING TEST

Following a bombshell Us Weekly cover claiming that Tori Spelling’s husband, Dean McDermott, cheated on her with a one-night stand in Canada, the reality star posted a picture of her four young children with a Christmas message to fans — but said nothing about McDermott. “Tori has no plans of addressing this or leaving him,” a close friend tells Confidenti@l. “She has chosen to ignore it, and that’s the end of the story.” The alleged other woman, Emily Goodhand, 28, claims Dean invited her to his room at the Fairmont Royal York Hotel in Toronto.

All Access Photo/Splash News

Tamara Ecclestone hits the shops in Beverly Hills.

DOING THE BUMP

Pregnant Tamara Ecclestone brought her baby bump shopping in a tight dress in Beverly Hills.

A MOVING MOMENT FOR KERI & KIDS

“The Americans” star Keri Russell kept warm with kids River, 6, and Willa, 2, in tow in Brooklyn on Friday. The 37-year-old actress,  recently linked to co-star ­Matthew Rhys, was earlier spotted meeting her estranged husband Shane Deary when he dropped off their kids at the house she is renting.