Gwen Stefani, Pharrell Williams sued over Spark The Fire song

Singers Gwen Stefani and Pharrell Williams are facing a lawsuit over their hit song "Spark the Fire."

Richard Morrill, who previously served as the singer's hairdresser, claimed Stefani's tune, which she co-wrote with Williams and released in 2014, features some strikingly similar lyrics to a track he played her during a style appointment back in 1998, reported TMZ.

The original song, titled "Who's Got My Lighter?," was by his former group L.A.P.D. And Morrill is now reportedly seeking a percentage of the USD 25 million profit from the single.