Kaley Cuoco and Karl Cook got engaged on Nov. 30. Cook posted a video of Cuoco crying hysterically as he proposed to her on Instagram.
Prince Harry and Meghan Markle
Prince Harry and Meghan Markle announced their engagement at The Sunken Gardens at Kensington Palace on November 27, 2017 in London, England. His Royal Highness Prince Harry Of Wales and Ms. Meghan Markle are engaged to be married. The wedding will take place in May 2018 at Windsor Palace. Prince Harry informed The Queen and other close members of his family and also sought and received the blessing of Ms. Markle's parents.
Serena Williams and Alexis Ohanian
Serena Williams (L) and Alexis Ohanian tied the knot on Nov. 16. The 36-year-old tennis pro and Alexis Ohanian said "I do" in a gorgeous Beauty and the Beast-themed wedding at Contemporary Arts Center in New Orleans. They are parents to Alexis Olympia Ohanian Jr.
Patton Oswalt and Meredith Salenger
Patton Oswalt and Meredith Salenger tied the knot on Nov. 4 in front of friends and family at Jim Henson Studios in Los Angeles. Oswalt called his daughter a "world champion flower girl."
In July, Oswalt and Salenger hit back at naysayers after he announced that they were engaged, 15 months after his wife Michelle McNamara died.
Kate Upton and Justin Verlander
Model Kate Upton and baseball player Justin Verlander married the weekend of Nov. 3 in Italy. Ahead of their big day, the Astros player celebrated his team's World Series win over the Los Angeles Dodgers.
Colton Haynes (L) and Jeff Leatham
Colton Haynes (L) and Jeff Leatham got married on Oct. 27 in a gorgeous Palm Springs ceremony.
The couple had 120 friends and family members on the guest list -- including Sofia Vergara and husband Joe Manganiello, Melanie Griffith, Jesse Tyler Ferguson, Lisa Rinna, Chelsea Clinton, Dylan O'Brien, Emily Bett Rickards, Billie Lourd and Cheyenne Jackson -- with Kris Jenner officiating the wedding.
Caitlin McHugh and John Stamos
John Stamos announced on Oct. 22 that he and Caitlin McHugh were engaged. He proposed to McHugh at Disneyland.
The 54-year-old Stamos wrote on Instagram: "I asked...she said yes! ...And we lived happily ever after." The post included a drawing of the couple standing in front of Sleeping Beauty's castle at Disneyland.
Gucci Mane and Keyshia Ka'oir
Gucci Mane and Keyshia Ka'oir married in a gorgeous $1.7 million ceremony at Miami's Four Seasons hotel on Oct. 17.
Joe Jonas and Sophie Turner
Joe Jonas and Sophie Turner announced their engagement on Oct. 15 on Instagram.
The DNCE frontman posted a photo on Instagram of Turner's hand, with a pear-cut diamond engagement ring, on top of his, and wrote, "She said yes."
Turner posted the same photo and captioned the post, "I said yes."
Mandy Moore and Taylor Goldsmith
Mandy Moore confirmed in September that she was engaged to her longtime musician boyfriend, Taylor Goldsmith, while she was on the Emmys red carpet.
"He did a very good job," Moore said to ET's Nancy O'Dell while flashing her massive sparkler. "Yeah, I'm not an engagement ring kind of girl."
"I'm a bashful girl and I didn't think I really wanted one, but then -- I'm very happy with this," she continued. "Because you can see my skin underneath. I like that."
Julia Stiles and Preston J. Cook
Julia Stiles and Preston J. Cook, a camera assistant, married in September. Stiles posted a photo on Instagram with Cook's hand on her baby bump and wrote, "Who doesn't love a shotgun wedding?"
Idina Menzel and fellow theater star, Aaron Lohr, married the weekend of Sept. 22 at their home. Her father and her son walked her down the aisle.
Menzel was married to Taye Diggs until 2014.
Miles Teller and Keligh Sperry
Miles Teller and Keleigh Sperry got engaged in August. The "Whiplash" star popped the question to his longtime girlfriend while they were on a safari adventure in South Africa over the weekend. The two have been together since 2013.
Julianne Hough and Brooks Laich
Julianne Hough and Washington Capitals hockey player Brooks Laich got married on July 8, near Coeur d'Alene, Idaho. The two were engaged in August 2014.
Hough couldn't help but gush about Laich while speaking with ET in May, revealing that it was love at "first sight."
"It was crazy. We had been talking for a while, but we hadn't met," she said. "When we saw each other for the first time, it was like, 'And, we're done.'"
Emmy Rossum and Sam Esmail
Actress Emmy Rossum and writer Sam Esmail married on May 28 in New York.
Rossum and 39-year-old Esmail -- best known for creating the critically acclaimed USA series "Mr. Robot" -- got engaged in August 2015 after dating for two years.The two met when he directed the actress in 2014's "Comet," in which she starred opposite Justin Long.
Pippa Middleton and James Matthews
"Almost royal" Pippa Middleton, sister of Duchess Kate, married billionaire James Matthews at St Mark's Church in Englefield, England Saturday on May 20.
Tom Daley & Dustin Lance Black
British Olympic diver Tom Daley and Oscar-winning screenwriter Dustin Lance Black married on May 6. The two shared their joy on social media following a gorgeous wedding ceremony at Bovey Castle in Devon, England.
Sam Hunt and Hannah Lee Fowler
Singer-songwriter Sam Hunt and Hannah Lee Fowler married on April 15 in an intimate ceremony in Georgia.
Dave Franco & Alison Brie
Dave Franco and Alison Brie got married in a secret ceremony in March. The two have reportedly been together since early 2012. The couple are private about their relationship, but Brie showed off her engagement ring at a screening for her new film "Sleeping with Other People" on Monday, Aug. 24, 2015.
Thomas Sadoski and Amanda Seyfried
Mom-to-be Amanda Seyfried married fellow actor Thomas Sadoski in a low-key ceremony on March 12. Sadoski delivered the news to "Late Late Show" host James Corden and flashed a wedding ring. He told Corden the pair eloped on Sunday, clearly catching the host off-guard.
RuPaul and Geoges LeBar
When "Hollywood Today Live" host Ross Matthews asked RuPaul if he and longtime partner Georges LeBar would ever tie the knot, the "RuPaul's Drag Race" host answered, "You know what? I don't think I've I've never said this on television before. We are married."
RuPaul then explained that they married in January, on the anniversary of their first meeting.
"Suicide Squad" star Margot Robbie reportedly married longtime boyfriend Tom Ackerley in Australia in December 2016.
"[Robbie and Ackerley] decided to marry around Christmas so they could spend time with both their families afterwards, which they've never done before," a source told Woman's Day.
Steven Yeun of "The Walking Dead" tied the knot with his longtime girlfriend, photographer Joana Pak, at a small, outdoor ceremony at the Paramour Estate in Los Angeles in December 2016.
Singer-songwriter Tyler Farr, right, married registered nurse Hannah Freeman in a private ceremony on Oct. 10, 2016 -- without a prenup, he was proud to declare.
Mia Goth and Shia LaBeouf got married in classic fashion -- by an Elvis impersonator at a Las Vegas wedding chapel -- on Oct. 10, 2016. The event was accidentally streamed live over the internet.
Zosia Mamet and Evan Jonigkeit
"Girls" actress Zosia Mamet and "Tallulah" star Evan Jonigkeit got married in October 2016. They both called themselves "best friends" on Instagram.
Kevin Hart and Eniko Parrish
Kevin Hart married his longtime love, Eniko Parrish, on August 13, 2016 in Santa Barbara, California, after a nearly two-year engagement.
Lauren Potter and Timothy Spear
"Glee" actress Lauren Potter's boyfriend, Timothy Spear gave her a promise ring to be married on July 31, 2016.
Kym Johnson and Robert Herjavec
Dancer Kym Johnson (R) and Robert Herjavec, who began dating 10 months after they were paired-up on season 20 of "Dancing With the Stars," tied the knot on July 31, 2016, during a lavish ceremony in Los Angeles.
Misty Copeland and Olu Evans
Copeland married her longtime partner, attorney Olu Evans, on July 31, 2016, in Laguna Beach, California, in front of 100 guests.
Christian Siriano and Brad Walsh
Designer Christian Siriano (L) and singer Brad Walsh married in Connecticut on July 9, 2016. "Orange is the New Black" actress Danielle Brooks sang at the star-studded affair.
Russell Wilson and Ciara
NFL football athlete Russell Wilson and singer Ciara tied the knot in a castle in England on July 6, 2016.
Michael Phelps and Nicole Johnson
ET confirmed that Michael Phelps and Nicole Johnson had secretly tied the knot the previous in June 2016, before the Rio Olympics.
Topher Grace and Ashley Hinshaw
The "That 70s Show" star and "True Detective" actress married on May 29, 2016 after two years of dating.
Jose Antonio Baston & Eva Longoria
Jose Antonio Baston, a businessman, and actress Eva Longoria were married in a private ceremony in Valle de Bravo, Mexico, on May 21, 2016. The couple got engaged in December 2015 in Dubai. They first went public with their relationship in 2013. Longoria has been married twice before.
Brody Jenner and Kaitlynn Carter
Brody Jenner revealed his engagement to girlfriend Kaitlynn Carter in an Instagram post, announcing that he had popped the question on May 4, 2016 after two years of dating.
Chelsea Peretti and Jordan Peele
Chelsea Peretti and Jordan Peele revealed in April 2016 that they eloped.
Heidi Rhoades and Jillian Michaels
The former "Biggest Loser" star proposed to her longtime partner, Heidi Rhoades, on the finale of her show "Just Jillian" in March 2016.
Jerry Hall and Rupert Murdoch
Media mogul Rupert Murdoch and model-actress Jerry Hall married March 4, 20`6 at an aristocratic palace in London.
Michael C. Hall and Morgan MacGregor
Michael C. Hall and Morgan MacGregor married on Monday, Feb. 29, 2016 at City Hall in New York City.
Ne-Yo and Crystal Williams
Ne-Yo and Crystal Williams married at the Terranea Resort in Rancho Palos Verdes, California, in front of a wooden altar draped in white cloth and flowers on Feb. 20, 2016.
Jamie-Lynn Sigler and Cutter Dykstra
Cutter Dykstra and Jamie-Lynn Sigler got married in Palm Springs, California, on Jan. 16, 2016. The couple have a 2-year-old son named Beau.