Katy Perry Set to Sing for Obama at L.A. Fund-raiser Concert

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She will be one of several artists who will perform at the "30 Days to Victory Concert" at the Nokia Theater on Oct. 7, a campaign fund-raiser tells THR.

Katy Perry has signed on to perform at the President Obama fund-raising concert Oct. 7 in Los Angeles, a campaign fund-raiser told The Hollywood Reporter.

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Perry is expected to be one of several artists who will sing for the president at the "30 Days to Victory" concert at the Nokia Theater.

The other performers are expected to be disclosed in coming days. The tickets, which will be available through the campaign, start at $44 a person for supporters under age 40. General admission is $250 a person.

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Following the concert, there will be a dinner, hosted by Jeffrey Katzenberg, with the president at a nearby restaurant. Those tickets start at $25,000 a person.