The event will take place on June 10 at the White House's South Lawn.
The donation serves as the latest act of good will in the star's Juneteenth giveback series.
The lineup also included Charlie Wilson, Miguel, Kirk Franklin, SWV, Coi Leray, Jodeci, Davido, Big Freedia & saxophonist Mike Phillips. Muni Long, Saweetie & VP Kamala Harris were presenters.
"I’m proud to be among the very talented Black designers featured in last night’s show to celebrate Juneteenth," she wrote.
The event comes two years after the president signed a bipartisan legislation establishing Juneteenth as a federal holiday.
The celebration will air live from The Greek Theatre in Los Angeles on Monday, June 19 at 8 p.m. EST.
