Pop singer Britney Spears, who on Sunday announced engagement to her boyfriend Sam Asghari, was seen showing off her diamond ring in an Instagram post. The 39-year-old singer wrote, "I can't f***ing believe it!!!!!!!" In the video Asghari can be seen by her side and she turns to and kisses on the cheek.

The announcement comes days after her father, Jamie Spears, filed to end the court conservatorship.

Asghari also posted a photo of Spears showing her ring finger to the camera on his Instagram account.

According to Associated Press, the ring is a four-carat diamond ring and has 'lioness' engraved inside the band, the company Forever Diamonds NY said in a statement.

Britney and Asghari met in 2016 on the set of the “Slumber Party” music video.

Britney Spears has been in news since last two months, when she told a Los Angeles court to end her conservatorship and that she was being "tortured mentally and physically."

In June, during one of the hearings, she told a judge that she wanted to marry Asghari, adding that she wanted to start a family with him, but said she hadn’t been allowed to remove an intrauterine device for birth control or even drive with him.

The pop singer was previously married to Kevin Federline, with whom she shares two sons, ages 14 and 15. In 2004, she briefly married her childhood friend Jason Alexander.

Soon after her post, her fans and friends poured in love on her post.

"Congratulations love!! So happy for you! Welcome to the club!" said celebrity heiress Paris Hilton in a comment on the video.

Singer Willie Gomez wrote, "Awe you twoooo 🙌❤️‍🔥😍😍😍. CONGRATS GUYS!!!"