Vocal strain keeps Jordin from big tour

'Idol' must rest before joining Alicia Keys

American Idol winner Jordin Sparks is resting at her Glendale home after strained vocal cords forced her to temporarily withdraw from a just-launched concert tour headlined by Grammy-winning R&B singer Alicia Keys.

Sparks is suffering from a vocal hemorrhage, which must be treated with vocal rest to avoid more serious problems, according to her grandmother, Pam Weidmann, who guided Sparks' career from age 12 through her Idol win.

"It's a huge disappointment, particularly since she was about to begin the tour with Alicia Keys and she had some major television appearances happening this week, including the Dove Awards (for Christian music)," Weidmann said.

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