Ultrasonicas

Las Ultrasónicas is a Punk Garage Rock group formed in 1996 in Mexico City, Mexico. Jenny Bombo with Tere Farfissa started the band which they spent several singers, guitarists and bass players until Suzy Vox, Jessy Bulbo (bass) and Ali Gua Gua (guitar) came. They begin to play as a quintet, until Tere leaves in 1997 and stay as a quartet with that lineup in 1998.

After everyone moving to there own direction, Jenny and Jessy return to reform, but Suzy would not integrate to dedicate in painting and her daughter. So, Jenny Bombo stays as bass and vocals, Jessy Bulboel as bass and vocals, and Ali Gua Gua as guitar and vocals, in 2002.

Source: http://www.last.fm/music/Las+Ultrasónicas/+wiki