Most versions use a capo on the 4th fret to play the open shapes of , which results in the actual key of C# Minor.
Since it is a contemporary hit, official sheet music is usually available on: (Search for "Metro Boomin Creepin") metro_boomin_the_weeknd_21_savage_creepin_visua...
Focus on the main vocal melody and the underlying "Enya" hum, which follows the pentatonic scale. Where to Find It Most versions use a capo on the 4th