Mavis Staples, 78, who is among the most significant Gospel and Soul singers of all time is also known as a civil rights activist in the United States. For over 50 years, she was part of her father Pop Staples’ family music group, The Staple Singers, who sold tens of millions of records and were also a major part of the soundtrack of the civil rights movement against racism. Staples released her first records already in the 1970s but her solo career has caught a second wind in the 2010s. She collaborated with Jeff Tweedy of the Wilco who played at last year’s Pori Jazz, and the albums ensued have been praised the public. Her latest album “If All I Was Was Black” came out last autumn.