UPDATE: Wednesday, Sept. 18, at 8:10 p.m. ET
LeBron added this photo via Instagram:


UPDATE: Sunday, Sept. 15, at 9:25 a.m. ET
USA Today, via the Associated Press, confirmed LeBron James' wedding and passed along a statement from Savannah Brinson:
The Miami Heat star married Savannah Brinson in San Diego on Saturday, according to two people familiar with the details of the ceremony.
About 200 guests were present for the ceremony, said one of the people, both of whom spoke on condition of anonymity because the hotel wedding was private and the couple had yet to release any details. The ceremony was the highlight of a three-day celebration that will conclude with a brunch on Sunday.
[...]
Brinson spoke briefly with AP about the wedding last spring, saying she was both excited and nervous. James has only discussed the wedding in general terms, once describing his role as only to ensure "that Savannah gets whatever she wants on her day, the wedding day she always dreamed of."

UPDATE: Sunday, Sept. 15, at 10:30 a.m. ET
US Weekly is reporting that the pair got married at San Diego's Grand Del Mar hotel, and the star-studded event had an unforgettable musical performance.
And in a huge surprise for guests, Beyonce and Jay Z performed their 2003 hit "Crazy in Love" with a full band, a source revealed to Us. Queen Bey, 32, flew in for just one night, having just performed at a concert in Brazil Friday for the South American leg of her Mrs. Carter World tour.

Courtesy of Grand Del Mar's website.

Courtesy of Grand Del Mar's website.

UPDATE: Sunday, Sept. 15, at 6:09 p.m. ET
There are various pictures from LeBron James' wedding trickling through the web.
Adrienne Bosh posted pictures of she and her husband, Chris, on her Instagramaccount.
Dwyane Wade was snapped with his girlfriend, Gabrielle Union (h/t Union's Instagramaccount.
Jerrold Brinson posted a photo of himself with Pat Riley and Shane Battier.

Per Page Six, LBJ didn’t want a large ceremony or reception with thousands of guests, such as the one Michael Jordan hosted in April. 
Charley Gallay/Getty Images
Some of the notable guests speculated to be in attendance include Miami Heat teammate Dwyane Wade and girlfriend Gabrielle Union, head coach Erik Spoelstra, team president Pat Riley, personal manager Maverick Carter, Team USA teammates Carmelo Anthony—along with his wife, La La—Chris Paul and many more.
Celebrity wedding planner Preston Bailey is in charge of making sure that James’ wedding is an affair fit for a king.
The couple have been dating since high school and have two children. They have been engaged since New Year's Eve 2011, with James winning both of his NBA titles after proposing.
Check back for more details about the wedding as they emerge.