Frozen's Idina Menzel on Her 'Crazy' Life These Days
04/03/2014 AT 06:00 AM EDT
Idina Menzel seems to have every child below the age of 10 under her spell – not that some of her biggest fans know quite who she is.
Recently her son Walker, 4, "was at a party, and a bunch of little girls were there singing songs from Frozen," says Menzel, who belts the megahit "Let It Go" as the voice of ice princess Elsa in the Disney blockbuster.
"And he said, 'Oh, my mommy sings songs from Frozen.' And they said," – she affects an unimpressed voice – " 'So do our mommies!' "
Not like Menzel does.
This winter, as Frozen and "Let It Go" snowballed into international sensations – more than $1 billion at the box office, a Best Song Oscar, 165 million YouTube views – the Broadway veteran, 42, finally started to experience life as a household name.