Formed in Los Angeles, California in 1972.
They signed to Capitol Records when producers - songwriters - brothers Larry Mizell & Fonce Mizell suggested them to the label.
They became the first black group to win a Best New Artist Grammy at the 1979 awards.
In 1980 the quartet reduced to a duo consisted of the two girls - songwriters and guitarists.
They did a very succesful remake of Kyu Sakamoto's hit "Sukiyaki", with new English words.
The pair split up in 1984 after four albums.