Jenni Rivera did philanthropy.
Dolores Janney Rivera Saavedra ( July 2 , 1969 -- December 9 , 2012 ) , better known as Jenni Rivera , was an American singer , songwriter , actress , television producer , spokesperson , philanthropist and entrepreneur known for her work within the Banda and ranchera music genres . A proclamation was given `` officially naming '' August 6 `` Jenni Rivera Day '' by the Los Angeles City Council for all her charity work and community involvement .