Minaj's recording engineer, Aubry "Big Juice" Delaine, recalled the story of the song:
"That was crazy, because she probably freestyled 65 percent, 75 percent of the song," he told Rolling Stone
. "She got the beat from her producer J. Reid, head it, told me to load it up and ran in the booth. It was kind of the same with 'Chun-Li.' She was playing around, singing, 'ganja burn, ganja burn, ganja burn,' and then when she listened back, she was like, 'that s--t's hard!' I wanna say the hook is still the freestyle she laid when she first stepped in the booth. She pulled that s--t out of thin air."