VIDEO: Martina McBride Performs 'Somewhere Over the Rainbow' on AMERICAN IDOL

Singing legend Martina McBride stopped by last night's AMERICAN IDOL to perform a moving rendition of "Somewhere Over the Rainbow." Check out the appearance below!

Next week on AMERICAN IDOL, with the stakes higher than ever, the finalists will perform three songs each - one a judges' pick, one Scott Borchetta's pick and the third is the contestant's own pick to sing as a tribute to his or her hometown. Tune in Wednesday, May 6 (8:00-10:00 PM ET live/PT tape-delayed) to see the Top Four return to their hometowns for the iconic IDOL homecoming, as well as which finalists make it to the Top Three and are heading to the finale.

Tickets are currently on sale for the "American Idol Live!" U.S. concert tour. The tour launches Tuesday, July 7 in Clearwater, FL, and stops in major cities, including New York, Chicago, Houston and Nashville, before wrapping up in Riverside, CA, on Friday, Aug. 28. Details can be found at www.AmericanIdol.com/tour.

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