Rocker Lenny Kravitz is being sued over an allegation that one of his toilets overflowed into a neighbour's apartment causing "catastrophic" water damage.
Kravitz is named in a legal case filed in New York
Insurance company Amica Mutual accused Kravitz in court papers of allowing "a commode to become blocked, clogged and congested with various materials".
It said it had to pay for more than $300,000 (£166,000) of damage to retired executive Joel Disend's Manhattan home.
The legal case was filed on 20 October at Manhattan's state Supreme Court.
Amica said it had had to pay $333,849.77 to fix Mr Disend's apartment on the floor below Kravitz's flat in their building in Manhattan's SoHo district.
Kravitz's 6,000-square-foot duplex,
which he bought in October 2000 for $8m (£4.4m), reportedly has five bedrooms, eight bathrooms and a billiards room.
Kravitz has a teenage daughter with former wife Lisa Bonet
Rock singer Courtney Love is also a tenant in the building.
Mr Disend, 62, retired in 2000 as chairman and chief
executive of New York Life Benefit Services, a financial consulting company.
Last year, actress Nicole Kidman moved into Kravitz's apartment but they split earlier this year.
Kravitz, 40, has a 15-year-old daughter with former wife Lisa Bonet, one of the stars of TV's The Cosby Show.