EFELos Angeles, US

Britney Spears' court-appointed lawyer Samuel Ingham resigned Tuesday, in the wake of the pop star's explosive court testimony in which she slammed the ongoing legal conservatorship as "abusive."

"Samuel D. Ingham III hereby resigns as court-appointed counsel for Britney Jean Spears, conservatee, effective upon the appointment of new court-appointed counsel," the papers filed in the Superior Court of California in Los Angeles read.

Ingham has been Spears' lawyer since 2008, but his work was called into question after the pop star said in her last statement that she didn't know she "could petition the conservatorship to end it" and that he would not let her speak out against it.