Complex sentence: Controversy was caused by a song by Nigerian musician, Fela Kuti, a charismatic multi-instrumentalist musician, composer and human rights activist, famed for being the pioneer of Afrobeat music and a controversial figure due to his unusual lifestyle and apparent drug use.
Split into simpler sentences: Controversy was caused by a song by Nigerian musician, Fela Kuti. Kuti was a charismatic multi-instrumentalist musician, composer and human rights activist--famed for being the pioneer of Afrobeat music as well as a controversial figure, due to his unusual lifestyle and apparent drug use.