Disney's Frozen is the highest-grossing animated film ever, and star Idina Menzel isn't the only one cashing in on the movie's success. The singer and actress told us that her four-year-old son Walker has tried to use the movie to score points with girls at a Valentine's Day party.

"They were singing Frozen songs, and he said, 'My mommy sings that,'" said Menzel, 43. "They all said, 'So do our mommies.'"

Walker may have better luck bringing up his mom's new Tony nomination. Menzel, already a Tony winner for playing Elphaba in Wicked, got a nod this year for the show If/Then.

While most actors and actresses would kill for a Tony nomination, when Idina Menzel found out about hers, she didn't even have time to celebrate.

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"I have a four-year-old. I was trying to get him out of the door," said Menzel, explaining what she was doing when she got the news. "I have a matinee. I have to work. It's an amazing experience."

Menzel will perform on the Tony Awards live Sunday on CBS, when Hugh Jackman returns as host.