A pregnant Reese Witherspoon, the London-based Gwyneth Paltrow, the reclusive Kristen Stewart and the super-busy supermodel mom Miranda Kerr all put their schedules on hold to support their favorite fashion designer Stella McCartney and her dad Paul at a party in her Beverly Hills boutique Friday night.

So just how was this father-daughter duo teaming up? Stella hosted a party to celebrate dad Paul's new music video for My Valentine. The black-and-white mini-film, directed by Paul himself, was shown in three versions -- one staring Johnny Depp, one staring Natalie Portman and another that merged the two together.

McCartney's BFF, Gwyneth Paltrow stunned in Stella's vegan booties, jeans and a tuxedo blazer. She met up with hubby Chris Martin inside. Coldplay's playing at Coachella this weekend, so the couple is taking a break from London to be on the Left Coast.

Reese covered her baby bump in a stunning black dress and sky-high black pumps. Meanwhile, Miranda wore the "it" dress of the spring -- the Stella swirl dress in black with an off-white blazer.

But beyond the fashion, it was the film that brought these A-listers together. Check out Paul's video -- it's a winner!

Paul McCartney and wife Nancy Shevell are enjoying every bit of their vacation to St. Barths. What goofballs!

Their trip to the Caribbean has been quite eventful. Just last week, Sir McCartney took his ladylove to support daughter Stella at her Paris fashion show.

After all these years, the 69-year-old Beatles singer is still rockin' a killer beach bod!

Paul McCartney is lovin' the good life in St. Barths!

With his arm around his 51-year-old fiancee Nancy Shevell, the 68-year-old Beatles legend rocked colorful board shorts and a baseball cap while cruising in the sand.

McCartney met his future wife back in 2007, and five years later, seems like the sparks are still flying!

Shevell also happens to be Barbara Walters' cousin! See more of Paul and Nancy enjoying paradise together in our gallery below.

Paul McCartney is the last Beatle to be honored with a star on the Hollywood Walk of Fame. It's about time!

The 69-year-old singer/songwriter was in great spirits during Thursday's award ceremony that took place in front of the Capitol Records building in LA.

McCartney's friend Neil Young, who was present at the ceremony, said the following about his longtime buddy:

"As a musician, as a songwriter, Paul's craft and his art are truly at the top of his game, the way Charlie Chaplin was an actor. He has an ability to put melodies and feelings and chords together, but it's the soul that he puts into everything he does that makes me feel so good and so happy to be here."

Ringo Starr got his star in 2010, while both Lennon and Harrison were awarded a star shortly after their deaths in 1980 and 2001.

Congrats Sir McCartney!

Newlyweds Paul McCartney and Nancy Shevell aren't spending their honeymoon the way most mult-millionaires would -- they attended an film premiere in New York less than two weeks after tying the knot!

The couple, married October 9 in England, took in the new Rhys Ifans/Vanessa Redgrave political thriller Anonymous at the Museum of Modern Art in the Big Apple Friday.

McCartney, 69, and Shevell, 51, did make some time for some R&R after the wedding -- they spent time at pal Mick Jagger's private residence on the island of Mustique in the West Indies. The secluded property normally rents for $15,000/week.

The pair have a second wedding party planned for this week in NYC.

Paul McCartney married New York businesswoman Nancy Shevell Sunday afternoon in London.

The Beatle, 69, and Shevell, 51, had been dating since 2007 and got engaged in May.

They both wore outfits by Paul's daughter, designer Stella McCartney, and exchanged Neil Lane rings.

Paul's daughter Beatrice, 7, served as flower girl. Fellow Beatle Ringo Starr, George Harrison's widow and Shevell's second cousin, Barbara Walters, were among the celebrities in attendance.

The two married on what would have been John Lennon's 71st birthday.

Paul McCartney may have moved on from his relationship with ex-wife Heather Mills, but he's still dealing with the aftermath of the drama surrounding their 8-year relationship.

Mills revealed this week in an interview with the BBC reporters from the Mirror (CNN presenter Piers Morgan was the Daily Mirror Editor at the time) hacked her phone in 2002, and intercepted a message McCartney had left her.

Mills confessed:

"I do think it is a horrendous violation of privacy, and I do think it's been going on a long time, and I do think more people than we know knew about it."

The confession prompted McCartney to reveal on Thursday he plans to contact the police over this "horrendous violation of privacy", telling reporters before a concert in Cincinnati on Thursday, "I will be talking to them about that."

The now-defunct News of the World newspaper closed down in June after 168 years, due to phone hacking allegations involving several British stars.

Read the Mirror's response to Mills allegations, after the jump ...

Paul McCartney is engaged to Nancy Shevell, his girlfriend of four years, People reports.

McCartney, 68, started dating New York businesswoman Shevell, 51, in the Hamptons in summer 2007.

This will be the Beatle's third marriage: He wed Linda McCartney in 1969 and Heather Mills in 2002. Linda passed away from breast cancer in 1998. Paul's marriage to Mills ended in a messy divorce in 2008.