"The way it came together, I work with Rhymefest," S1 told MTV News about the song, referring to another Chicago MC. "I did like four joints on his album. And one day, out the blue, I got a text from Rhymefest that said, 'Kanye is loving your stuff, he said he's about to change your life.' Two days later, I got an e-mail that said my flight to Hawaii [where West recorded much of the album] leaves in three hours! So I was on a flight, and it just happened like that. I went down and stayed for like two weeks, banged out some joints.
"The 'Power' joint that we did, it was actually a track that I already made and gave to Rhymefest, and he just so happened to play it for Kanye in the studio and he loved it. So when I got out to Hawaii, Kanye had already recorded to it."
A month later, S1 returned to Hawaii and heard "Power" again, this time with more "polish" added by 'Ye, who co-produced the song. However, S1 picked the sample that drives the record: a snippet of British progressive rock band King Crimson's "21st Century Schizoid Man."