Yes, quite a list of speakers, in fact. Malcolm X's "Message to the grass roots" was given there, and the second version of "The Ballot or the Bullet". From the history section of their website:

Thanks in part to its 5,000-seat auditorium, King Solomon Baptist went on to play a major role in the civil rights movement, as speakers could address large audiences. In 1954 Thurgood Marshall, then lead council for the NAACP, spoke at the church immediately following their victory in the Brown V. Board of Education ruling, which overturned segregated schooling. In 1956 US Representative Charles Diggs gave a national radio address about the murder of Emmett Till.


Dr. Martin Luther King Jr. made two appearances at King Solomon; the first at the 78th annual National Baptist Convention of America meeting in 1958, and the second at the National Baptist Congress meeting in September of 1963, having just given his "I have a dream" speech in Washington DC a week earlier. Over 10,000 attend the conference, where King was the keynote speaker and delivered a speech commemorating the 100th anniversary of the emancipation proclamation.


At the other end of the civil rights movement ideology, King Solomon Baptist also hosted speakers like Malcolm X. A few weeks after King's speech, the church held the Northern Grass Roots Leadership Congress. The keynote address "Message to the grass roots," given on November 10th by Malcolm X to a crowd of 3,000, was later described as one of the most influential speeches of his life. It is heavily critical of the non-violent MLK-led civil rights movement and the August march on Washington, favoring a violent revolution. In April of 1964 Malcolm X made another appearance at King Solomon, repeating his "The Ballot or the Bullet" speech he'd given a week earlier. In it he encourage blacks of all faiths and backgrounds to unite and resist oppression by violence if necessary, and join the political process. His presence isn't universally accepted – The church attempted to block his appearance - but having already paid a deposit and advertised it heavily, Malcolm X took the matter to court and prevailed.