BBC News
By Mark Savage
image copyrightRCA
image captionThis Is America topped the US chart and won the Grammys for both record and song of the year
Childish Gambino is being sued for copyright infringement over his Grammy Award-winning rap song This Is America.
Emelike Nwosuocha, a rapper who performs as Kidd Wes, claims the song copied his track Made In America, which was released two years earlier.
The "lyrical theme, content and structure" of the two songs' choruses are "glaringly similar", he said in court documents filed in New York.
Childish Gambino, aka Donald Glover, has yet to respond to the claims.