The sisters have been publicly feuding amid the release of Jamie Lynn's memoir.
Britney Spears' attorney, Mathew Rosengart, addresses Jamie Spears' statement under oath, claiming he's entitled to more legal fees.
Britney sent the letter amid the release of Jamie Lynn's memoir.
The singer's lawyer filed the declaration in court on Wednesday.
The pop star threatens legal action against Jamie Lynn for continually speaking about Britney's life while promoting her new memoir.
Britney Spears is elevating her fight with her younger sister.
Jamie Lynn Spears continues to share her story in a new interview for Spotify's 'Call Her Daddy' podcast.
Jamie Lynn Spears shares her story in an emotional interview for Spotify’s ‘Call Her Daddy' podcast.
Justin Timberlake's song is reportedly about his and Britney's split.
The actress' book, 'Things I Should've Said,' is out now.
'Things I Should Have Said' is out now.
The 'West Side Story' star came under fire for the video she shared online which has since been deleted.
The sisters are in the midst of a war of words following Jamie Lynn's interview with ABC News.
'Things I Should Have Said' is due out Jan. 18.
