(CNN)  -- The often scathing critic Simon Cowell called Susan Boyle -- the breakout singing sensation from "Britain's Got Talent" -- a "little tiger." Judge Piers Morgan admits that he expected Susan Boyle's audition to be a joke before she began singing. On CNN's "Larry King Live," she showed she's no one-trick pony. During a taping of the show Friday, she nailed a verse of Celine Dion's "My Heart Will Go On" after King asked her to sing. "Amazing. That was just absolutely stunning," said "Britain's Got Talent" judge Piers Morgan, who was also a guest. "To sing that with no musical backing is unbelievable. You have the voice of an angel, Susan."
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Susan Boyle sings Celine Dion's "My Heart Will Go On" for Larry King
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Asked if she's considering a makeover, Boyle says "Why should I change?"
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"Britain's Got Talent" judge Piers Morgan apologizes for initial reactions
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Boyle says she predicts one big change: "I certainly won't be lonely anymore"
"That doesn't bother me because I knew I had to get on with my act ... ," said @placeholder, again speaking by satellite.