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.