Spears shared a video with her boyfriend Sam Asghari on social media after the pair received their immunisations this week.
“What did you think of the vaccine?” Asghari asked in the video.
“OK. The people on the internet said that it was really, really bad, it was like a bullet going through your arm – [but] it was nothing,” Spears said.
“I felt nothing. I’m fine, and I hope I continue to stay fine.”
Got the COVID vaccine 😳💉 …. Great success 😂 …. High-five 🖐🏻 !!!!!! pic.twitter.com/qr9e0RUA9Q
— Britney Spears (@britneyspears) April 8, 2021
It comes as Spears continues her legal battle against the controversial conservatorship she has been in since 2008 and efforts to replace her father Jamie as her permanent conservator.
Last month saw the singer’s attorney Sam Ingham filing for Jodi Montgomery to replace Jamie as permanent conservator.
The filing also states that the singer “expressly reserves the right to petition for termination of this conservatorship”.
Montgomery – who was appointed as Britney’s temporary conservator in 2019 when her father suffered a period of ill health – will be able to “restrict and limit visitors by any means” under the role, except for meetings with Ingham.
Jamie Spears has been continually criticised for refusing to step down from the role and give his daughter her freedom – with concerned fans launching the #FreeBritney movement to support the pop star.
A new BBC documentary is set to investigate the conservatorship.