"Idol Gives Back" preview

This coming week will be known as "Idol Gives Back" week, as an event that only American Idol can pull off will take place over a three-night span.

Kicking off festivities will be the Top 8 finalists when they perform inspirational songs on Tues., April 8. The following night, Idol begins at 7:30 p.m. ET for a special two-and-a-half hour event that will be filled with celebrities, guest performers and performances by the finalists. Those slated to make appearances on Wednesday's episode include Amy Adams, Annie Lennox, Ashley Tisdale, Billy Crystal, Bono, Brad Pitt, Carrie Underwood, Celine Dion, Chris Daughtry, Dane Cook, Eli and Peyton Manning, Elliott Yamin, Fantasia, Fergie, Forest Whitaker, Jennifer Connolly, John Legend, Mariah Carey, Miley Cyrus, Reese Witherspoon, Robin Williams, Snoop Dogg, Vanessa Hudgens and senators Barack Obama, John McCain and Hillary Clinton.

Corporate partners with Idol for the special that will be making large donations include ExxonMobil, News Corp., Ford, Coca Cola, AT&T and Allstate.

Last year, the event raised a combined $76 million from viewers and corporate donors. Considering the fact that this year's event is set to be even bigger and better than last year's, put money on the total being significantly larger this time around.

And the week will wrap up on Thursday at 8:00 p.m. ET, when the Top 7 is revealed and Jordin Sparks performs her hit single "No Air" with Chris Brown.

So, get ready to hit the couches, or in many cases, the TiVos.