The Chipmunks, a fictitious music group created by Ross Bagdasarian in 1958, consisted of three singing chipmunks: Alvin, the troublemaking frontman; Simon, the intellectual; and Theodore, the sweetheart.
The trio was managed by their human "father," Dave Seville. In reality,Dave Seville was the stage name of Bagdasarian, who electronically sped up his own voice to create the higher-pitched squeaky voices of the chipmunks. This process was so new and innovative that it earned a Grammy for engineering in 1959.
The Chipmunks released a number of albums and singles, with "The Chipmunk Song (Christmas Don't Be Late)" spending four weeks atop the charts in the late 1950s. They have also starred in their own cartoon series and animated films over the years.