Britney Spears announced her engagement to her long-term boyfriend, Sam Asghari.
The singer posted a video of the couple showing off the ring on Instagram.
Spears is fighting a legal battle to end her 13-year conservatorship, which controls both her personal life and finances.
She revealed that the terms of the arrangement were preventing her from marrying Mr Asghari or having more children.
The conservatorship arrangement was imposed in 2008 when concerns were raised over the singer’s mental health.
Twenty-seven-year old Asghari, who is a personal trainer and actor, posted a separate photo of the ring.
The couple met on the set of a music video in 2016.
Asghari’s manager, Brandon Cohen, confirmed news of the engagement to People magazine.
“The couple made their long-standing relationship official today and are deeply touched by the support, dedication and love expressed to them,” he said.
Spears, 39, has been married twice before. In 2004, she wed her childhood friend Jason Alexander in Las Vegas but the marriage was soon annulled.
Later the same year, she married dancer Kevin Federline, with whom she has two children. The couple divorced in 2007.