Berry Sisters

This'll be the first quartet of Vocaloids ever! They shall be suggested in the program Vocaloid 6.

Strawberry

 * Theme color: Red
 * Kind of sister: Individual
 * Nationality: American
 * Religion: Christian
 * Language: English
 * Voice type: Soprano
 * Music genre: Classical crossover

Blueberry

 * Theme color: Blue
 * Kind of sister: Individual
 * Nationality: American
 * Religion: Christian
 * Language: English
 * Voice type: Contralto
 * Music genre: Rock

Raspberry & Blackberry

 * Theme colors: Pink (Raspberry), Purple (Blackberry)
 * Kind of sister: Twins
 * Nationality: American
 * Religion: Christian
 * Language: English
 * Voice type: Mezzo-soprano
 * Music genre: Pop

Software
English Vocaloids by Hollywood

Voices

 * Jodi Benson (Strawberry)
 * Lena Hall (Blueberry)
 * Aly Michalka (Raspberry)
 * AJ Michalka (Blackberry)