Did you know that Lady Gaga was once in an AC/DC video? It's okay if you don't as it's not exactly easy to spot her. The pop star and actress revealed that she appeared in the band's "Stiff Upper ...

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 ...