Elon was seen at the New York shindig accompanied by his mother, Maye Musk, who was dressed all in black.
The billionaire could be seen raising his fists in a triumphant pose as he showed off his armoured costume.
The outfit was bright red and appeared to have a satanic symbol emblazoned on the chest.
The costume was complete with arm and leg straps, which he wore over a plain black T-shirt and black trousers.
New York store AbracadabraNYC features what appears to be the same costume online, listing the price as $7,500 on their website.
Elon’s outing comes after his Twitter takeover sparked backlash from some, including several celebrities like Jameela Jamil and Shonda Rhimes, who have quit the platform.
source: express.co.uk