January 25, 2019 - John Sciulli/Getty Images North America more pics like this »
Miley Cyrus And Liam Hemsworth
Length of Engagement: 6 years

The young couple got engaged in 2012, but called off the engagement a year later. Three years later they reconciled, and in 2016 were back together and engaged. But neither were in a rush to make it official. Cyrus told The Sun in an interview, “I don’t envision marriage. I’m 24,” she said. “I hope I get to live a little bit more. I have too much living to do [before I get married].”