Britney Spears says her dad committed her, forced her to take drugs - reports

Britney Spears has reportedly begged a judge to reconsider her father's conservatorship, claiming he had her committed against her will and forced her to take prescription medication.

Spears checked into a rehabilitation centre earlier this year, reassuring fans via social media she was simply "taking some me time".

Now, TMZ reports that the 'Toxic' singer requested amendments to the agreement that sees her father control her affairs.  

Last month, Spears addressed rumours started by the #FreeBritney movement on social media that suggested the 37-year-old was not being allowed to make her own decisions.

In an Instagram post, Spears said rumours had "gotten out of control", pleading with followers: "don't believe everything you read and hear".

"There's rumours, death threats to my family and my team, and just so many things crazy things being said," she wrote.

"I am trying to take a moment for myself, but everything that's happening is just making it harder for me."

According to TMZ, a judge refused to change the legal agreement that has been in effect for the past 11 years, instead ordering an expert evaluation of the situation.

E! News reports that Spears' mother Lynne and sister Jamie Lynne flew to Los Angeles to support her throughout the hearing.

A source reportedly said that Lynne is "extremely upset to see Britney in the condition she is and [feels] that she can't help her."

"She wants to know what's really going on so that she can sleep at night. The anxiety and worry is taking its toll.

"She wants to see Britney get better and to be healthy and happy and right now that's not happening."