From Kardashian pregnancies to the Aussie 'Yes' vote, we have a look back over the biggest stories of 2017.
As fans exited Ariana Grande's concert inside the 21,000-seat Manchester Arena that evening, a suicide bomber blew himself up in the venue's rotunda, killing 22 -- including an 8-year-old girl -- and injuring more than 60 others.
On June 13, Beyonce and JAY-Z welcomed their twins, a boy and a girl. The couple named them Sir and Rumi.
After a flurry of gunshots, which went on for more than 10 minutes, finally ended, 58 people were dead and over 500 were injured. It was the worst mass shooting in United States history. The gunman, who was firing from his room on the 32nd floor of the nearby Mandalay Bay hotel, took his own life.
Dozens of women came out in force in October and November to blast studio executive Harvey Weinstein, claiming he sexually harassed them. Angelina Jolie, Gwyneth Paltrow, Ashley Judd, Lupita Nyong'o and more said they were victims of unwanted advances. Within days, the Weinstein Company board fired Harvey amid the scandal, and more actors, including Ed Westwick and Ben Afleck were accused of sexual misconduct.
The music world suffered a devastating loss when Soundgarden frontman Chris Cornell was found dead in a Detroit hotel room at the age of 52.
Kensington Palace announced that Prince William and Duchess Kate were expecting a sibling for Prince George and Princess Charlotte. "Their royal Highnesses The Duke and Duchess of Cambridge are very pleased to announce that The Duchess of Cambridge is expecting their third child," the palace posted to Twitter.
Rock icon Tom Petty whose career spanned five decades, died in October. He was 66. His longtime manager shared the sad news on Tom's official Twitter page. "He suffered cardiac arrest at his home in Malibu in the early hours of this morning and was taken to UCLA Medical Center but could not be revived."
Duchess Kate's sister, Pippa Middleton, married financier James Matthews in England. As expected, attendees included Prince William, Kate and their kids, pageboy Prince George and bridesmaid Princess Charlotte, as well as Prince Harry.
Actor Kevin Spacey came out as gay, but many saw it as a distraction from a real issue. That's because a few hours before the announcement, actor Anthony Rapp alleged he was at Kevin's house in 1986 when the Oscar winner placed him on a bed, climbed on top of him and made sexual advances toward him.
Kensington Palace announced that Prince Harry and Meghan Markle got engaged. The wedding will be in May 2018 at St. George's Chapel at Windsor Castle. The day the engagement was announced, Harry and Meghan told the BBC that the proposal happened a few weeks ago at their cottage in Kensington Palace. "It was a cosy night," Meghan said.
Men and women -- including many celebrities -- marched to protest President Donald Trump's personal and political views, which they perceive as anti-women, and advocate for legislation and policies promoting human rights, reproductive rights, positive immigration reform and civil rights. It was officially called The Women's March.
It's a KarJenner baby boom! On Sept. 22, it was reported that Kylie Jenner and sister Khloe Kardashian were both pregnant with their first child. Kim Kardashian and Kanye West are also having a third child, but this time it's different -- they're using a surrogate.
Olivia Newton-John announced on May 30 that she has been diagnosed with breast cancer for a second time. Because of her condition, she postponed her current tour in the United States and Canada.
Miranda Kerr tied the knot with Snapchat billionaire Evan Spiegel. The two got married in a very small, private ceremony at their Los Angeles home. About 50 guests attended the nuptials.
Hugh Hefner, the mogul who created the Playboy empire, died at 91 on Sept. 27 at the famed Playboy mansion. In a statement, his son Cooper Hefner said, "My father lived an exceptional and impactful life as a media and cultural pioneer and a leading voice behind some of the most significant social and cultural movements of our time in advocating free speech, civil rights and sexual freedom."
Australia has voted yes in favour of same-sex marriage. The Australian Bureau of Statistics says 7,817,247 people – 61.6% of the vote, said yes. The no vote was 38.4%.
Former Spice Girl Melanie Brown called time on her marriage to Stephen Belafonte in March and it got ugly quick. She alleged that during their nearly 10-year marriage, he abused her and sexually exploited her. She even claimed that Stephen got their nanny pregnant and convinced the woman to have an abortion. The divorce was finalised December 16.