When the song "Get Munked" was playing Alvin takes Brittany's hand and dances with her.
Alvin says to James Ingram to sing a song he wrote for Brittany - "I Don't Want To Be Alone For Christmas (Unless I'm Alone With You)".
" meaning she wants to marry him and spend the rest of her life with him.Brittany had a similar appearance (but her eye color is blue) Like the Chipmunks, the Chipettes were originally created for the musical medium, and later crossed over into cartoons.According to their creator, Janice Karman, she and Ross Bagdasarian, Jr., "..been doing the albums at that point... I wanted to do female chipmunks that have counter personalities to the Chipmunks so we could do some girl tunes." Bagdasarian also added in reference to the Chipettes characters, "It enables you to deal with issues that girls are going through that boys wouldn't necessarily be dealing with... We wanted to let her know she can be president, or a soccer champion, or whatever...She is blonde with pigtails and has brown eyes in the 80's show, which changed to green in the more recent appearances.The origins of the Chipettes can be traced to the 1982 Alvin and the Chipmunks album The Chipmunks Go Hollywood (RCA, 1981).In the movie, Christina Applegate, Anna Faris, and Amy Poehler voice the Chipettes.