The Jesus Take The Wheel singer reveals she lives at the top of a hill and it's quite a hike for kids seeking candy - but still they come in their droves on Halloween night.

"We live on the worst street for trick-or-treating," she says. "There's this massive hill and there's only a couple of houses at the end of it... but they do (come), because they know...

"You've gotta like, give 'em the real deal."

It will be the first Halloween for Underwood's eight-month-old son Isaiah, and she's planning dress him up like a fish because the family name is Fisher and her husband Mike Fisher's nickname is 'Fish'.