Ellen DeGeneres will appear at a Los Angeles fundraiser for President Obama on Wednesday, an event aimed at the gay and lesbian community, sources say.

She’ll be joined by the singer Pink, who will be providing entertainment at the Beverly Wilshire Hotel event, with tickets starting at $1,250 per person. Obama’s reelection campaign also has scheduled a $40,000-per-person dinner at the home of Ryan Murphy, co-creator of “Glee.” Sources say that both events are selling well and could sell out.

On her daytime show, DeGeneres praised Obama after his announcement earlier this month that he supports same-sex marriage. “There have been moments in history when someone has the courage to stand up for what they believe in, and that one action changes everything,” DeGeneres said. “I hope this is one of those times.”

In the days following the announcement, organizers of the Los Angeles gala said that they saw an uptick in sales of tickets. They also switched to a larger venue, although those plans were in the works before Obama’s interview with ABC News’ Robin Roberts.

The co-chairs of the event are Barry Karas, Dana Perlman, Chad Griffin and Andrew Tobias. Among those on the host committee for the event are Paris Barclay and his husband, Christopher; Bruce Cohen; James Costos and Michael Smith; John Gile; Michael Lombardo and Sonny Ward; Max Mutchnick and Erik Hyman; and Rob and Michele Reiner.