Tom Cruise and Katie Holmes have asked Katharine McPhee to sing at their wedding, after McPhee lost out to Taylor Hicks in last week's American Idol finale. "Tom and Katie have been Katherine's biggest fans," a source close to the couple says. "They think she's destined to become a singing legend." Holmes reportedly met McPhee at the LA Scientology center, where the singer has been taking classes with her boyfriend.
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