Gaga, 28, took to Instagram to share pictures from the party which went till late one in the night, reported Mirror.
"Livin' after midnight. Melbourne Metal Madness," she captioned a picture of herself. The DJ for the evening said she loves metal songs and asked her to play her favourties.
"She was there between 1ish till close. She literally crawled on her hands and knees out the door and up the lane. Classic!!
"I played at least 10 of her requests as she's a total metal head! First request was 'Squealer' by AC/DC. Best part was when I made her perform for me on the bar top to 'Long Way To the Top'. Great night," DJ Mermaid wrote on her facebook page.