Britney Spears and Sam Asghari.Photo: J. Merritt/Getty

BEVERLY HILLS, CA - APRIL 12: Honoree Britney Spears (L) and Sam Asghari attend the 29th Annual GLAAD Media Awards at The Beverly Hilton Hotel on April 12, 2018 in Beverly Hills, California. (Photo by J. Merritt/Getty Images for GLAAD)

Wedding bells are ringing forBritney SpearsandSam Asghari!

Multiple sources confirm to PEOPLE that the longtime couple said “I do” Thursday night in Los Angeles.

Around60 guests were in attendance, including Drew Barrymore, Madonna, Paris Hilton and Kathy Hilton.

“I am very ecstatic this day has come, and they are married. I know he wanted this for so long. He is so caring and supportive every step of the way,” Asghari’s manager, Brandon Cohen, told PEOPLE after the ceremony. “I am so grateful to have Sam in my life and can’t wait for the future they will build together.”

For more on Britney Spears and Sam Asghari’s wedding, listen below to our daily podcast PEOPLE Every Day.

Ahead of the festivities, an insider revealed Spears, 40, had beenenvisioning her wedding dayfor nearly nine months.

“Britney started planning and dreaming about her wedding shortly after she got engaged in November,” the insider said. “It’s a huge deal to her that she is finally able to get married. Shewants it to be perfect.”

Her sonsSean Preston, 16, andJayden James, 15, werenot in attendanceat the wedding but are “happy” for their mom, a lawyer for Kevin Federline told PEOPLE on Thursday.

Spears and Asghari werefirst romantically linked after they met on set of the singer’s “Slumber Party"music video. Spears later revealed in aradio interviewin 2017 that she and Asghari, 28, took nearly “five months” to reconnect after her video shoot.

“I was like, ‘He was really cute, this guy was really cute,’ so I called him,” she said about digging up his phone number. “He’s just a really fun, funny person.”

Britney Spears and Sam Asghari.Sam Asghari Instagram

Britney Spears Shares Glimpse of Wedding Look as Fiancé Sam Asghari Teases a Date ‘Has Been Set’

Fast forward and the coupleannounced their engagementlast September, months before herconservatorship was terminatedin November. At the time, Asghari’s manager Brandon Cohen told PEOPLE that he is “proud to celebrate and confirm the engagement.”

“Britney is ecstatic,” a sourcetold PEOPLEafter Asghari popped the question at her Los Angeles home.

In February, the couple addedtheir Australian Shepherd puppy Sawyerto the family. “Geez …. can you have two loves of your lives because he comes in second !!!!” Spears wrote on Instagram at the time.

Last month, Spearsgave fans a peek at her wedding-daylook while introducing her new cat Wendy.

“Introducing Wendy 🐈 !!! And yes, this is the veil to my wedding dress 👰🏼‍♀️ !!!” Spears wrote alongside a snapshot of the feline sitting atop white tulle fabric.

Asghari previously posted athrowback photoof himself and the singer kissingto his Instagram Story, in which she held up her ring finger to show off her bling.

“Our lives has [sic] been a real fairytale. Happy Mother’s Day to you my soon to be queen,” wrote Asghari. Apparently alluding to their nuptials, he continued, “Also the big day has been set! But nobody will know until the day after.”

source: people.com