Hello~
The answer: The Chipmunks were an animated virtual band developed by Ross Bagdasarian in 1958 at the request of Liberty Records for a novelty song. The group consisted of three singing anthropomorphic chipmunks named Alvin, Simon, and Theodore. Bagdasarian provided the group's voices, which were sped up to create high-pitched squeaky voices. The three singing chipmunks were named as an inside joke, after executives at Liberty Records. Alvin (named after Al Bennett), Simon (named after Si Waronker), and Theodore (Ted Keep).
Explanation: I hope this helps and sorry if I might had got it wrong
From: Jaybella~