Question: Which Canadian singer was originally featured on the song "Bankroll" by American DJ Diplo?

Related documents: [0]  [DOC] "Bankroll" is a song by American DJ Diplo. It features rappers Rich Chigga, Rich the Kid and Young Thug. Originally, Justin Bieber was featured on the song, but due to Bieber already having exclusives with DJ Khaled ("I'm the One") and David Guetta ("2U") at around the same time as Diplo released "Bankroll", Diplo was forced to remove the original from his SoundCloud account. Diplo replaced Bieber's verse with a verse from Rich Chigga. [END] 
[1]  [DOC] "I'm the One" is a song written and performed by American musician DJ Khaled; Canadian singer Justin Bieber; and American rappers Quavo, Chance the Rapper and Lil Wayne. The song was released on April 28, 2017, by We the Best and Epic Records as the second single from Khaled's tenth studio album, "Grateful". [END]  
Answer: Justin Bieber
Justin Bieber