I Believe to My Soul
Customizing a classic song with your own name is corny even in the Corn Palace that is the Idol studio. But Chikeze turns the "Ronny/Donny" line of the original into "Stevie/Chikeze" and points to the name-murdering Simon on the line 'you know my name's Chikeze baby!' It's clever and memorable, but it helps that he traverses this Donny Hathaway song's low growls and high rasps with an ease unseen in his competitors.