Britney Spears' Sister Jamie Lynn Fiercely Defends Her: Do Not Come for the Ones I Love

'I love my sister with everything I have.'

Jamie Lynn Spears is coming to her sister, Britney Spears', defense.

Amid the #FreeBritney movement, Jamie Lynn took to Instagram to stand up for her older sister, who, ET has learned, checked herself into a health facility earlier this month. A source told ET that Britney's decision was made due to the tremendous stress she's endured due to the current health crisis of her and Jamie Lynn's father, Jamie Spears.

In the video posted to Instagram that was taken a decade prior, Britney and Jamie Lynn are walking while paparazzi swarm them. When one person shouts, "Nobody wants you in this neighborhood," Jamie Lynn defends her older sibling, saying, "Well then move the f**k out."

"Ten years ago, who was there?? I have been here long before anyone else, and I’ll be here long after. I love my sister with everything I have," Jamie Lynn, 28, captioned the clip. "So, anyone or anything that speaks to the contrary can GTFOH with all the comments about what you don’t understand."

"Do not come for me or the ones I love anymore," she continued. "You can move the 'blank' outta here with all that, just like this other lady who was running her mouth.??"

The #FreeBritney movement began after Britney checked herself into a health facility. She also postponed her album and put her Britney: Domination show at Park Theater at the Park MGM resort in Las Vegas on hold before it even began.

Following the news, a Britney fan podcast, Britney's Gram, claimed that they received "an anonymous tip from a credible source" that the "Toxic" singer is being held against her will in the facility, and thus the #FreeBritney hashtag was born.

Britney's mother, Lynne Spears, who divorced from Jamie in 2002, has fueled the fire even more by liking Instagram comments from fans who believe the singer is being held against her will and urging others to listen to the podcast. 

Fans who believe the podcast's claims protested in front of West Hollywood City Hall earlier this week to support Britney.

However, there is no corroboration that Britney went into treatment against her will or is being held in the facility. ET learned that the 37-year-old singer briefly left her treatment facility last week to get her hair done at a salon in Los Angeles, and left again on Sunday to spend time with boyfriend Sam Asghari. She is still in treatment.

Watch the video below for more on Britney.