Multi-platinum superstar Prince is being sued by his former lawyers, who claim the performer, owes more than $700,000 in legal fees.

Patterson Belknap Webb & Tyler (PBWT), a New York based law firm, is suing the Grammy winner for only paying $125,000 in court cases in New York, California and Ireland.

This is the latest in a series of lawsuits filed against the legendary musician, whose real name is Prince Rogers Nelson.

“The Nelson Parties have failed to pay an additional $708,687.04 due to PBWT,” court documents said according to various media reports. “PBWT has repeatedly but unsuccessfully requested payment from the Nelson Parties.”

The performer did not comment on the suit.

The singer is fighting another suit filed by Revelations Perfume and Cosmetics. That company said Prince failed to promote a signature fragrance called “3121.”

The singer was also sued by Chicago Bulls forward Carlos Boozer in 2006. Prince added too many personal effects, including purple stripes, to Boozer’s home, which he was renting for $70,000 a month.

The law firm represented the singer in both those cases, as well as his divorce and for concerts he canceled in Dublin, Ireland and California. The firm is seeking fees connected to the divorce case and the three canceled concerts, according to Reuters.

The star gained widespread acclaim and crossover success with the album, “Purple Rain,” which won two Grammys. He has won a total of seven Grammys and sold more than 100 million albums worldwide.