Jason Derulo underwent a full prosthetic makeover to become the villainous Night King from HBO's "Game of Thrones" for Halloween Sunday.

"Winter is coming bihhh, thoughts on my costume? #Nightking #gameofthrones," the singer wrote on Instagram of himself in makeup as the character alongside a photo of the Night King from the hit fantasy drama.

Derulo also shared a makeup video of himself receiving the latex prosthetics in order to become the leader of the White Walkers.

Derulo wore the costume while performing onstage at the 2017 Maxim Halloween party, E! News reported.

Celebrities such as "Bachelor in Paradise" stars Corinne Olympios, DeMario Jackson, "Dancing With the Stars" dancers Peta Murgatroyd and Maksim Chmerkovskiy and Tara Reid also attended the event.