Paul McCartney Marries Nancy Shevell!

All they need is love!

Paul McCartney and Nancy Shevell said "I do" in England Sunday, Us Weekly confirms. The former Beatle, 69, wed Shevell, 51, in a small ceremony at the registry office in Marylebone. A source tells Us the duo are planning to throw a separate party in NYC for their friends in the United States.

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Shevell wore an above-the-knee ivory dress designed by McCartney's daughter, Stella; The Beatles rocker wore a dark suit. According to Reuters, McCartney presented Shevell with a 5-carat square-cut Neil Lane diamond set in a platinum ring.

The first wedding guests arrived at the Marylebone registry office at 2:25 p.m.; the ceremony began at 3:30 local time and lasted one hour. The intimate affair was attended by 30 of the couple's close friends and family, including Ringo Starr and his wife Barbara Back, George Harrison's widow Olivia, Shevell's son Arlen, and her cousin, Barbara Walters.

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McCartney's driver, John, acted as the official videographer for the wedding, standing by the car and filming the couple.

The Old Marylebone Hall is also where McCartney married his first wife, Linda Eastman, in 1969.

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After exchanging vows, the newlyweds left hand-in-hand looking "very much in love." According to one onlooker, McCartney gave the crowd a thumbs-up before hopping into a maroon-colored Lexus with his new wife and daughter Beatrice.

"McCartney seemed over the moon!" the onlooker adds. "He was smiling and was holding hands with Nancy the whole time!

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The couple's reception will be held at McCartney's home in St. Johns Wood, which he has owned since 1965. He addressed the press outside the estate, telling them he feels "terrific. I feel wonderful."

Preparations for the reception began days earlier, as bouquets of pale yellow roses, several bags of ice and sound equipment were delivered Friday. The following morning, a gazebo was erected outside the rocker's home as workers delivered 135 silver chairs, 10 tables and an easel.

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Attendees will dine on a selection of small savory tarts at the post-wedding bash, such as vegetable gyoza and goat cheese and chervil polenta. Other menu items included fresh mango, tomatoes, red cabbage and cranberries, and desserts of elderflower-flavored creme fraiche with mixed berries. "We have been preparing for three days," a catering source told Us.

There are also two tiered cakes created by West Sussex-based Posh Puds Patisserie: one is vegan (made with apples) and the second is chocolate.

In May, Shevell told The New York Post her and McCartney's wedding would include "just our families." She added: "Don't ask what I'll wear because how dressy do you get to stand before a Justice of the Peace in his chambers, which is exactly what we're going to do."

A source tells Us McCartney proposed to Shevell in April "during a romantic candlelit dinner for two" after four years of dating. As for the ring? It's estimated to be worth an impressive $650,000!

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This is Shevell's second marriage and McCartney's third. The rocker's first wife Linda died of cancer at age 56 in 1998. His second marriage to Heather Mills in 2002 ended with a messy, expensive divorce six years later.