Alvin The Chipmunk is a fictional character and the lead singer of the animated music group known as The Chipmunks. Created by Ross Bagdasarian Sr. in 1958, Alvin is characterized by his mischievous personality and distinctive high-pitched voice. He often takes the lead in the group's performances and is known for his confidence and charm. Alvin is part of a trio that includes his brothers, Simon and Theodore. Together, they have appeared in various television shows, movies, and music albums. The Chipmunks are famous for their catchy songs and entertaining antics, appealing to both children and adults alike.