Winfrey attended a retirement dinner in Cleveland Sunday for 73-year-old Rev. Otis Moss Jr. who fought for civil rights alongside Rev. Martin Luther King Jr.
Moss is stepping down after 33 years as pastor of Olivet Institutional Baptist Church. His son is pastor at Trinity on Chicago's South Side.
The Rev. Otis Moss III replaced Obama's former pastor, the Rev. Jeremiah Wright. Obama, who has since left the church, condemned Wright during the presidential campaign for some of his fiery sermons that were critical of America.
The event also drew the Rev. Jesse Jackson and former Ohio congressman Louis Stokes who read a congratulatory letter from Obama.