She has joined the likes of rapper-songwriter Iggy Azalea, singer-songwriter Justin Bieber, record producer Mariah Carey, singer Rod Stewart and multi-instrumentalist Stevie Wonder, all of whom sat in the passenger seat as comedian actor James Corden's drove them around L.A. as part of "The Late Late Show's."
The country singer was just the latest guest on what's become a signature sketch for the show: Corden invites his guest into the passenger seat of his car, drives around with them, and they sing their little hearts out.
Underwood and Corden began by singing her hit "Smoke Break."