Entertainment Music Britney Spears Is 'Ecstatic' About Sam Asghari's Surprise At-Home Proposal, Says Source The singer and the actor announced their engagement after four years of dating on Sunday By Melody Chiu Melody Chiu Melody Chiu is an Executive Editor at PEOPLE overseeing music, events and emerging content. She has been with the brand since 2009, editing, writing and reporting across all entertainment verticals. She has written cover stories on Taylor Swift, Selena Gomez, Melissa McCarthy, Blake Shelton, Jordan Turpin 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 06:54PM EDT Britney Spears and Sam Asghari. Photo: Sam Asghari Instagram Britney Spears is feeling "Lucky!" After her longtime boyfriend Sam Asghari, 27, popped the question at her Los Angeles home on Sunday, a source close to Spears, 39, tells PEOPLE exclusively the singer is thrilled about her future with the actor. "Britney is ecstatic," says the insider of the pop star, who giddily showed off her brand-new diamond ring on Instagram. Spears and Asghari — who first met on set of her 2016 "Slumber Party" music video — "are deeply touched by the support, dedication and love expressed to them," the fitness enthusiast's manager Brandon Cohen told PEOPLE in a statement. RELATED GALLERY: Britney Spears and Sam Asghari's Cutest Moments Together, from Couple Workouts to Dance Parties Britney Spears and Sam Asghari Are Engaged: 'I Can't ... Believe It!' Cohen added that Spears' new bling was designed by NY.C. jeweler Roman Malayev. For more on Britney Spears and Sam Asghari's engagement news and other top stories, listen below to our daily podcast PEOPLE Every Day. Asghari has been by the singer's side during a difficult year in which her conservatorship has been thrust into the spotlight. RELATED VIDEO: Britney Spears Raves Over 'Adorable' Emma Stone's Cruella, Says She Watches It '3-4 Times a Week' In August, she praised her future husband on Instagram for helping her through the "hardest years of my life." After an explosive court hearing earlier this summer, a friend of the couple told PEOPLE Asghari and Spears have long been ready to settle down together. "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."