Swing Out Sister (S.O.S.)

Swing Out Sister are a British sophisti-pop group best known worldwide for their 1986 song "Breakout". Other hits include "Surrender", "Twilight World", "Waiting Game" and a remake of the Eugene Record soul composition "Am I the Same Girl?" Though album sales in the U.S. and Europe have levelled off since the early 1990s, the group continues to attract a loyal fanbase. The group is also very popular in Japan.

source: Wikipedia