Who is oldest britney or jenette from Alvin and the chipmunks?

Britney, often referred to as Britney Spears, was born on December 2, 1981. Jenette, from Alvin and the Chipmunks, refers to Jeanette Miller, a character in the franchise, who does not have a specific birthdate as she is a fictional character. Therefore, in terms of real-life age, Britney Spears is older than Jeanette Miller.