Rita Ora as Post Malone for Halloween 2018.— Getty Images

On Halloween, celebrities like everyone else, have the opportunity to dress up as someone or something else entirely, shunning their famous personas for just one night. While Heidi Klum is widely regarded as being the Queen of Halloween, donning extraordinary costumes year upon year, she may now have to defend her crown from a possible usurper. Rita Ora attended the Kiss Haunted House Party at Wembley's SSE Arena dressed as Post Malone, with many expressing their astonishment over the singer's uncanny portrayal of the rapper. Ora paid extremely close attention to detail with her costume, which included Malone's recognizable facial tattoos, his grilled teeth, his brown curly locks and a denim jacket embossed with his name.

She even impersonated the rapper on stage at the London arena, with many people in the crowd none the wiser as to her true identity. "@PostMalone I LOVE you bro," Ora tweeted. "Surprised Wembley as you tonight at my show my fans didn't even recognise me LOL." Social media has been flooded with praise for Ora's costume, with some even saying that she "wins Halloween." "Sorry I'm not much of a fan but OMFG @RitaOra wins best costume! LMAO this is pure class," one person wrote on Twitter. "I can't go to sleep because I'm afraid Rita Ora dressed as Post Malone will haunt my dreams," another person commented.-www.independent.co.uk