Entertainment Music Britney Spears Is 'So Excited' About Wedding to Sam Asghari and 'Wants It to Be Perfect': Source "She is so excited that she feels overwhelmed. She is very emotional," a source close to Spears and Asghari tells PEOPLE of their upcoming wedding By Jack Irvin Jack Irvin Instagram Twitter Digital Music Writer, PEOPLE People Editorial Guidelines Published on June 9, 2022 11:35 AM Share Tweet Pin Email Britney Spears is feeling "emotional" as she prepares to walk down the aisle Thursday. As the 40-year-old pop icon and her fiancé Sam Asghari prepare to tie the knot in an intimate Los Angeles ceremony, a source close to the couple tells PEOPLE that Spears has been envisioning saying "I do" to the fitness instructor and actor, 28, for nearly nine months. "Britney started planning and dreaming about her wedding shortly after she got engaged in November," says the insider. "She has enjoyed the planning, but also felt stressed about it." "It's a huge deal to her that she is finally able to get married. She wants it to be perfect," continues the source. "She is so excited that she feels overwhelmed. She is very emotional." Britney Spears and Sam Asghari Set to Marry in Intimate Wedding on Thursday: Sources According to the insider, Spears is ready to take the next step in her relationship with Asghari, as he's been a major support throughout her battle to end her 13-year conservatorship, which was terminated in November 2021. For more on Britney Spears and Sam Asghari's wedding, listen below to our daily podcast PEOPLE Every Day. "Sam has been around for the worst time in her life," the source tells PEOPLE. "He has been her rock. She is beyond grateful for his love." Britney Spears and Sam Asghari. Kevin Winter/Getty "She truly feels she would still be in the conservatorship if it wasn't for him," the source continues. "She can't wait to marry him." PEOPLE previously confirmed Spears and Asghari will get married at a small ceremony attended by 60 close guests, and the "...Baby One More Time" hitmaker will wear a dress by famed fashion house Versace, per insider sources. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. Britney Spears and Sam Asghari. J. Merritt/Getty Back in May, Spears teased the progress of her wedding planning on Instagram, sharing a snap of her veil. In an Instagram Story that same month, Asghari also revealed that "the big day has been set," though they are keeping it under wraps until after they've tied the knot. Sources have previously told PEOPLE that the Iranian-born actor has "been Britney's rock for years," saying last June that "She leans on him for everything." Spears shares two sons Sean Preston, 16, and Jayden James, 15, with ex-husband Kevin Federline. For his proposal, Asghari popped the question with a 4-carat round-cut diamond ring designed by Forever Diamonds NY's jeweler Roman Malayev. The stone was set on a platinum cathedral setting around a plain silver band. A Look Back at Britney Spears and Sam Asghari's PDA-Packed Romance Britney Spears and Sam Asghari. Sam Asghari Instagram Asghari has since said he didn't want anything "super big and super celebrity." "I want it to represent something. I want it to come from my heart and I want it to go to someone that wasn't a big jeweler," Asghari told GQ of the rock. "It was a big company but it was a company that was willing to do it the way that I wanted it. So I designed a really beautiful ring. It's a princess cut, for a real-life princess." He kept the proposal a surprise, not telling anyone his proposal plan in advance. "I didn't want anybody to know and anybody to interfere in any way whatsoever so it was between me and her," he said, adding that Spears was shocked when he got down on one knee.