In 1968, Brown joined the
Black Panther Party as a rank-and-file member, studying revolutionary literature, and selling
Black Panther Party newspapers. She soon helped the party set up its first Free Breakfast for Children program in Los Angeles, as well as the Party's initial Free Busing to Prisons Program and Free Legal Aid Program. In 1968, Brown was commissioned by
David Hilliard, the Party chief of staff, to record her songs, a request resulting in the album
Seize the Time. She eventually assumed the role of editor of
the Black Panther publication in the Southern California Branch of the Party. Brown was part of a U.S. People's Anti-Imperialist Delegation which visited China in 1970, along with fellow prominent party member
Eldridge Cleaver. In 1971, Brown became a member of the Party's Central Committee as Minister of Information, replacing the expelled Cleaver. In 1973, Brown was commissioned to record more songs by
Black Panther Party founder and Minister of Defense
Huey P. Newton. These songs resulted in the album ''Until We're Free''. As part of a directive by Newton, Brown unsuccessfully ran for the
Oakland city council in 1973, getting 30 percent of the vote. She ran again in 1975, losing again with 44 percent of the vote. Brown stepped down from chairing the Black Panther Party less than a year after Newton's return from Cuba in 1977, when Newton refused to condemn the beating of
Regina Davis, an administrator of the Panther Liberation School. Other male members of the party beat Davis and broke her jaw because she reprimanded a coworker when he did not do an assignment. Newton opted for solidarity with the men. This incident was the point at which Brown could no longer tolerate the
sexism and
patriarchy of the
Black Panther Party. For many, Brown's leaving was seen as a turning point for the Party. She left Oakland with her daughter, Ericka, and moved to Los Angeles – fearing for her personal safety. Brown recorded two albums:
Seize the Time (Vault, 1969) and ''Until We're Free
(Motown Records, 1973). Seize the Time'' includes "The Meeting", the anthem of the
Black Panther Party. ==Later activism==