Alicia Keys Cancels Concerts

LOS ANGELES, Calif. -- Eleven-time Grammy winner Alicia Keys was forced to put the brakes on her "As I Am Tour," after her swollen vocal chords continued to plague the singer, Access Hollywood has learned.

After canceling her concert Tuesday night in Pittsburgh, Alicia was forced to cancel a Thursday night stop in Cleveland as well.

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The singer is being treated by a physician for her swollen vocal chords and hopes to return to the stage on April 26 in Columbus.

On Monday, former "Idol" champ Jordin Sparks, who was Alicia's opening act, was forced to withdraw from the tour and cancel all performances for the rest of the month.

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Cleveland fans who missed Alicia due to the canceled concert will be able to use their tickets for the Columbus show.