Congratulations to Guy Pelly and his fiancée Elizabeth Alleen Wilson!
The duo arrived at the Memphis Hunt and Polo Club at 5:30 p.m. to attend the formal ceremony, with guests taking their seats on white chairs in a garden, a source tells E! News exclusively.
"The bride arrived in a classic blue Thunderbird just before the 6pm ceremony began," the source continued. "A boys choir performed along with a cello ensemble. Lizzie looked beautiful in a jeweled dress with a sheer overlay and a crown of white flowers in her hair."
The couple's vows lasted about 30 minutes, with William and Harry looking "overjoyed" for their friend during the ceremony. "You could see they are very close," the source added. "They were all hugging each other and shaking hands."
Once the ceremony was over, the Duke of Cambridge went up to the bride and kissed her on the cheek, then he gave Pelly a big hug.
Next, wedding attendees headed to an outdoor cocktail hour as the sun was going down.
"Everyone was chatting and talking as they toasted their glasses and congratulated Guy and Lizzie," the source said. "Harry looked a little bit tired and was yawning over and over. He was also happy to be hanging out with his buddies and was having lots of good laughs as the evening went on."
Describing the wedding as "child-friendly," with lots of babies and children in attendance, the source said Prince William kept a "watchful eye" on a little boy who began to wander away from his mom. "As the boy began to run, William seemed alarmed and almost began to chase him before the mother stepped in. William smiled and pointed at the little boy and seemed to get a big kick out of him."
As with many things involving the royals, this wedding ceremony wasn't a simple event. Pelly and his boys helped ring in the big day earlier in the week!
Will and Harry flew in for three days of partying before seeing their bestie tie the knot.
Festivities started Thursday night with the wedding party dinner at Rendezvous. On Friday, the princes toured Elvis Presley's mansion at Graceland with other wedding guests (Princess Beatrice and Princess Eugenie also reportedly toured the grounds). And it's said the party will continue on until tomorrow with a brunch near the Wilson family estate.
Harry and Will have been friends with newlywed for years and Pelly even threw Will's bachelor party prior to his 2011 royal wedding to Kate. Will and Kate also named Pelly a godfather to baby boy Prince George last year. Guy is not a stranger to royal ties, either. His mother, Lady Carolyn Herbert, was a former girlfriend of Prince Andrew and was also a close friend to the late Princess Diana.