Entertainment Music Britney Spears and Sam Asghari Are Engaged: 'I Can't ... Believe It!' The couple — who announced their engagement on Sunday — first met in 2016 on the set of the singer's "Slumber Party" music video By Daniela Avila Daniela Avila Instagram Twitter Editorial Assistant, PEOPLE People Editorial Guidelines and Melody Chiu Melody Chiu Instagram Twitter Melody Chiu is a Senior Editor for PEOPLE. She has been with the brand since 2009, editing, writing and reporting across all entertainment verticals. She oversees PEOPLE's music and events coverage and has written cover stories on Taylor Swift, Selena Gomez, Melissa McCarthy, Blake Shelton and Sandra Oh. The Los Angeles native graduated from the University of Southern California and has appeared on Extra!, The Talk, Access Hollywood and Good Morning America. People Editorial Guidelines Published on September 12, 2021 06:17 PM Share Tweet Pin Email Britney Spears and Sam Asghari are ready to say "I do!" Spears and Asghari announced their engagement on Instagram on Sunday after more than four years of dating. The singer and actor-fitness enthusiast were first romantically linked after meeting on the set of Spears' "Slumber Party" music video in 2016. Spears, 39, and Asghari, 27, shared the happy news on Instagram, and Asghari's manager Brandon Cohen shared in an additional statement to PEOPLE that he is "proud to celebrate and confirm the engagement." Britney Spears and Sam Asghari. Sam Asghari Instagram "The couple made their long-standing relationship official today and are deeply touched by the support, dedication and love expressed to them," said Cohen, adding that Spears' new ring was designed by N.Y.C. jeweler Roman Malayev, founder of Forever Diamonds in New York. For more on Britney Spears and Sam Asghari's engagement news and other top stories, listen below to our daily podcast PEOPLE Every Day. "He couldn't be happier to be involved and make this one-of-a-kind ring," added Cohen. Sam Asghari and Britney Spears. Britney Spears Instagram In a sweet video, Spears — who a source tells PEOPLE exclusively is "ecstatic" about the proposal— showed off her new rock with Asghari by her side. "Yes!" she tells Asghari after he asks if she likes her new bling. RELATED GALLERY: Britney Spears and Boyfriend Sam Asghari's Cutest Moments Together, from Couple Workouts to Dance Parties The singer has had a year filled with up and downs as she continues to fight to end her 13-year conservatorship. In August, Spears praised her now-fiancé on Instagram for helping her through the "hardest years" of her life. Sam Asghari Wishes 'Lioness' Britney Spears a Happy Valentine's Day: I'm Her Favorite' "Not only has this cute asshole been with me through the hardest years of my life but he happens to be an extremely good cook 👨🏽🍳!" Spears wrote. "Fast & Furious franchise, don't miss out on your next star 🌟🏎️👗🤓 !!!!" In a March interview with Forbes, the Iranian-born actor opened up about the beginning of his relationship with Spears and admitted he was ready to take the next step in his career — and relationship. "My priorities in life are to remain humble and understand where I came from and where I'm going," he told Forbes at the time. "I want to take my career to the next step when it comes to acting. I want to take my relationship to the next step, as well. I don't mind becoming a father. I want to be a young dad." Sam Asghari and Britney Spears. Britney SPears INstagram A few months later, the singer made it clear as she gave her testimony during a conservatorship hearing that she wanted to marry and have a child with Asghari — and a friend of the couple told PEOPLE that he was also ready to settle down. "He's ready for marriage and kids with Britney and is serious about the relationship. She wants to take that next step and have that full life with him," said the friend. "As a couple they've hidden how they've really felt even from people close to them because they were anxious and scared, but now it's all out there." Following the explosive June court hearing, a source told PEOPLE that Asghari was the singer's "rock." Britney Spears and Sam Asghari in 2020. twitter "Sam has been Britney's rock for years. He makes sure that she eats well and works out," the source said about Spears' boyfriend. "She leans on him for everything. He works and has his own life too, but is around as much as he can." Britney Spears' Boyfriend Sam Asghari Claims Her Dad Jamie Is 'Trying to Control' Their Relationship In an exclusive statement to PEOPLE following the release of an unauthorized Hulu documentary on Spears' life and conservatorship, Asghari said he was "looking forward" to a "normal, amazing future" with the pop star. "I have always wanted nothing but the best for my better half, and will continue to support her following her dreams and creating the future she wants and deserves," he told PEOPLE at the time. "I am thankful for all of the love and support she is receiving from her fans all over the world, and I am looking forward to a normal, amazing future together."