Beleaguered rapper T.I. is set to return to the courtroom - lawyers for his ex-girlfriend are demanding $8,000 in unpaid legal fees relating to their ongoing custody battle.

A U.S. court ordered the star in September to pay more than $3,000 a month to former partner LaShon Dixon, on top of their two sons' private school tuition, uninsured medical bills and various expenses racked up by the children's extracurricular activities.

The Whatever You Like hitmaker, real name Clifford Harris Jr., was also told to cover her attorney costs by November 19, according to Dixon's lawyer Randy Kessler.

Harris is due to appear at Fulton County Superior Court in Atlanta, Georgia to resolve the matter on Tuesday.

Dixon and Harris are in the midst of negotiating custody and child support for their sons, aged seven and eight. The star has two other sons with his fiancee, Tameka 'Tiny' Cottle.

T.I. is due to begin a jail sentence this year after pleading guilty to the illegal possession of three machine guns and two silencers following his 2007 arrest.

(This news article provided by World Entertainment News Network)