Kevin Parry/WireImage; Gregg DeGuire/WireImage
March 03, 2008 12:00 AM

John Mayer and Fergie have added their names to the list of celebrities who are signed up to be a part of this year’s two-hour Idol Gives Back special, which is set to air April 9 on FOX at 8 p.m. EST.

Other musicians appearing include Carrie Underwood, Chris Daughtry, Bono, Annie Lennox, Miley Cyrus, Mariah Carey and Snoop Dogg.

Last week host Ryan Seacrest also revealed that Brad Pitt would make an appearance.

Last year’s fundraiser earned more than $75 million for charities in the U.S. and in Africa. Kevin Parry/WireImage; Gregg DeGuire/WireImage

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