The 22-year-old musician dished to host Alexa about voicing the youngest of the chipmunks in the upcoming Alvin & The Chipmunks: The Squeakquel.
He shared, “It’s one of those funny things. You go into the studio and Theodore has the highest voice of them all…” Jesse‘s voice was then magically transformed into Theodore’s.
Check out the clip below where Jesse even answers a few “naughty” questions.
The final It’s On With Alexa Chung show will air on Thursday, December 17.
Jesse McCartney – “It’s On With Alexa Chung,” 12/15