From there, Johnson and Gaga began a duet of the AC/DC hit, “Highway to Hell." They eventually get so into the song that Johnson fully took his hands off the wheel — to clasp hands with Gaga ...

Lady Gaga sings AC/DC‘s classic ‘Highway to Hell’ with the band’s lead singer Brian Johnson for a Carpool Karaoke Christmas special – watch the footage below. During Gaga’s segment ...