Berry Sisters

This'll be the first quartet of Vocaloids ever!

Strawberry

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

Blueberry

 * Theme color: Blue
 * Nationality: American
 * Religion: Christian
 * Language: English
 * Voice type: Contralto
 * Music genre: Pop

Raspberry & Blackberry

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

Software
English Vocaloids by Hollywood

Voices

 * Jodi Benson (Strawberry)
 * Lena Hall (Blueberry)