Mahershala Ali, who used to record music as Prince Ali, rapped during a press conference for new movie Green Book at Toronto International Film Festival 2018.
The Oscar-winner will play police detective Wayne Hays in the third season of the HBO show.
Mahershala Ali posted about a '4:44' visual album on Instagram.
Watch Mahershala Ali Talk About His Trainwreck Audition For Game Of Thrones
Barry Jenkins’s audacious coming-of-age drama is a personal and poetic story about black queerness.