Taking to their Instagram accounts on Tuesday, Gwen Stefani, 51, and Blake Shelton officially announced their engagement. The No Doubt lead vocalist shared a sweet photo of her ring, alongside her 44-year-old fiance.

Multiple sources told PEOPLE that the couple recently got engaged in Oklahoma. Yes, please, Stefani wrote in the comments section of the Instagram post, tagging the country music singer. Shelton shared the same post on the video and photo-sharing website using a sweet caption.

In the caption section of the post, Shelton expressed his gratitude towards Stefani for saving his 2020 and the rest of his life. He concluded the message by noting that he loves her and that he heard a yes from her. Just weeks before this big announcement, Stefani told Extra that she thought it was cute when people thought Shelton was her husband.

She noted that many people tend to refer to Shelton as her husband but said they were just together at that time. Stefani noted that people probably got used to seeing them together but thought that people mistaking Shelton for her husband was pretty cute.

She even had to correct Dua Lipa, who referred to Shelton as her husband on Jimmy Kimmel Live. Correcting the singer, Stefani said although he wasn't her husband, it sounded cool when she said it. Taking to the comments section of Stefani's Instagram post, Lipa joked, saying it looked like their little interview aged well.

The now-fiances, who first met on the set of The Voice, have released several duets in collaboration, including their latest hit "Nobody But You," which grabbed the number 1 spot on the Billboard's Country Airplay chart. The couple has also collaborated for "Happy Anywhere," which was released last year.

Moreover, they have released the holiday song "You Make It Feel Like Christmas." After meeting for the first time in 2015, the happy couple bonded over their recent heartbreaks and dealt with their respective divorces. Shelton told PEOPLE at the time that the bond they formed with each other after finding out what they were going through is still there.

Four years after their relationship became official, an insider told PEOPLE that they were planning for a long-term future together. The source confirmed that they were still in love and more than just inseparable. They both feel they have found their true partners in life and want to live together forever.