The 4-year-old, who helped pick out Holmes's designer outfit for a red carpet event in October, also frequently offers style tips to Tom Cruise, too.
"She tells me what to wear," Cruise, 47, says on The Oprah Winfrey Show Friday. "She just likes to dress herself, wear whatever she wants," he adds of the burgeoning fashionista. "If she wants to wear it, she wears it."
The young Cruise, who's been spotted sporting everything from Burberry to a Spanish flamenco dress and heels, "is such a happy, easy, fun girl," says her proud dad, adding that all the paparazzi attention doesn't upset her.
"She just deals with it," he says. "We don't make it a problem. You get used to it after so long."
Plus, she takes after her mom, who according to Cruise, is "a very relaxed person."