Billie Jo Spears

Billie Jo Spears (born Billie Jean Spears, January 14, 1937 – December 14, 2011) was an American country music singer. She reached the top-10 of the Country music charts five times between 1969 and 1977, her biggest hit being "Blanket on the Ground", which, in 1975, became her only number one. She also had a large following in the United Kingdom with two of her singles reaching the pop top five.

source: Wikipedia