Whitney Houston's Voice Cracks At Comeback Show, She Blames Oprah (VIDEO)

Whitney Houston missed the high notes in her first public performance in years today in Central Park.

The singer blamed her cracked voice on a taping she did Monday for 'Oprah.' "When I'm talking, I should be singing," she told the audience. Her four-song set will air Wednesday in the 8 a.m. hour on 'Good Morning America.'

Whitney kept the gig short because of a strained voice, her rep told TMZ. "She was only ever committed to two songs, so she actually extended the show to the third and fourth songs."

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