Pointer Sisters

The Pointer Sisters are an American R&B singing group from Oakland, California, that achieved mainstream success during the 1970s and 1980s. Spanning over four decades, their repertoire has included such diverse genres as pop, disco, jazz, electronic music, bebop, blues, soul, funk, dance, country and rock. The Pointer Sisters have won three Grammy Awards and received a star on the Hollywood Walk of Fame in 1994. The group had 13 US top 20 hits between 1973 and 1985.

From Wikipedia.org