(Columbia, South Carolina) A Grammy-winning singer whose role in a Barack Obama campaign event riled gay activists served as master of ceremonies of a gospel concert promoting the Democratic presidential hopeful Sunday night.

"We're here," Donnie McClurkin told a cheering crowd. "We're here and we're glad we're here."

McClurkin, who has angered gay rights groups by saying homosexuality is a choice, told the crowd the musical acts were there "in the name of unity" and "in the name of change."

An hour earlier, outside the concert venue, about two dozen gay and lesbian group supporters marched and carried a rainbow flag.

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