I'm sorry, I don't see any chipmunk or chipette image, so, Michael :)

The Chipettes History (Brittany)

Brittany is the lead singer and eldest sister of the Chipettes, and is the female counterpart of Alvin. She has a pleasing facial and physical appearance, but at times can be vain and self-serving with the extreme desire to have whatever she wants. Often Brittany is happy to outdo others she dislikes, mainly this is shown when her arguments with Alvin grow into bets. This often establishes the plot of the episode. She has auburn hair which is seen in a stylized ponytail, blue eyes, and her signature color is pink.

The Chipettes history (Jeanette)

Jeanette is the tallest of the Chipettes. She is the female counterpart of Simon. She is the middle sister of the Chipettes. Jeanette has a high amount of intellect which she is often not afraid to use, and is considered the lovable klutz of the Chipettes. Her klutzy personality is shown in her outfits, and is often seen with her shoelaces untied, a strap on her dress shoulder crooked, etc.. She wears glasses due to extremely poor eyesight. Jeanette has brown hair in a bun, green eyes, and her signature colors are royal blue and purple.

The Chippetes history (Eleanor)

Eleanor is the youngest Chipette. She is considered the female counterpart of Theodore, but is shown to be much more athletic. Out of the three Chipettes, she is the one who is most likely to willingly take part in a sports activity. Still, she is the chubbiest of the sisters due to her love for creamy food and cooking. Eleanor is much less timid than Jeanette, and is always happy to stand up to Brittany when she thinks something is not right. Eleanor has blonde hair, brown eyes, her hairstyle is a pair of blonde pigtails, and her signature color is spring green.

The Chipmunks history (Alvin)

Alvin is a roller coaster aficionado and the main protagonist of Alvin and the Chipmunks. His enthusiasm is boundless and his despair bottomless. The term look before you leap definitely doesn't apply to Alvin, who is impulsive, charming, musical, full of animal magnetism and is a lover of coffee. The character always seems to make up hare-brained schemes to get what his goal is at the time, whether it be trying to help his younger brothers, getting a date with Brittany, keeping Dave from figuring something out, or getting out of a sticky situation. However, Alvin seems to refer to his often illogical or crazy plans as "challenging the ordinary". Alvin's signature color is red, and he has blue eyes.

The chipmunks history (Simon)

Simon is "the smart one". In addition to having an IQ just north of Einstein, Simon possesses a very dry sense of humour as well as a keen wit. Alvin exploits Simon for his crazy schemes because he is smart enough to carry them out. In the end, Simon loves Alvin, although he secretly worries that they share the same gene pool. His signature color is blue (originally yellow in Let's All Sing with The Chipmunks, then red in Sing Again with The Chipmunks and then orange in Around the World with The Chipmunks), and he has blue eyes and black glasses

The Chipmunks history (Theodore)

Theodore is the chipmunk of innocence. He is shy, loving, sensitive, chubby, gullible, trusting, naive, irresistible, snack-munching, adorable and cute. In short, he is an easy target for Alvin's manipulations. In fact, Theodore often holds the swing vote between his two brothers' choices of action. Simon appeals to Theodore's better nature while Alvin goes straight to bribery. He is constantly craving snacks and in one episode, tried to eat Alvin's hand because of his hunger.

Theodore's signature color is green, and also has green eyes. He also has blond/tan fur in the film. He plays the drums, the guitar, and others. He is the baby of the group. He is fragile yet unpredictable. At times, childish and be Alvin's follower. He is the glue that binds his brothers' despite Alvin and Simon's differences and regular disagreements.