Meet the Black Female Guitarist Who Invented Rock-and-Roll

From The Daily Beast: Sister Rosetta Tharpe may be the most famous rock-and-roll star you’ve never heard of.

If you don’t know the name, try to picture an African-American woman in a long white sequined dress and high heels, touring America in the 1930s and 40s with an electric guitar slung around her neck. She got her start in gospel but began crossing over to nightclubs and introducing the rhythms that became rock-and-roll.